Essential Amino Acids

PubMed ID: 33693735

Animal proteins produced greater net protein balance and synthesis than plant proteins (EAA content‑linked), supporting more effective muscle repair.

PubMed ID: 19699838

A moderate 30 g protein meal robustly stimulates mixed-muscle protein synthesis in young and older adults (supports repair).

PubMed ID: 22079390

Nutriceutical including methionine sped cutaneous healing and reduced recurrence — supports faster tissue recovery for skin lesions.

PubMed ID: 40498114

Oral L-arginine dramatically increased ureteral stone expulsion rates (rapid clinical resolution of a tissue/ductal problem).

PubMed ID: 40603739

Oral L-arginine markedly reduced mucositis severity and increased 'healed' rates vs placebo, a strong tissue-healing signal.

PubMed ID: 39765161

Preoperative amino-acid supplement improved postoperative functional recovery and shortened hospital stay (clinical tissue/functional recovery).

PubMed ID: 37739730

HMB/Arg/Gln markedly reduced grade-3 mucositis and limited weight loss during chemoradiation (clear tissue/ mucosal recovery benefit).

PubMed ID: 36804278

Large RCT in COVID showing faster weaning from respiratory support and shorter hospital stay—direct evidence of faster tissue/organ-system recovery.

PubMed ID: 36449096

Oral L-arginine significantly sped healing of chronic anal fissures and reduced sphincter pressure/pain—strong human evidence for faster tissue recovery.

PubMed ID: 35148750

Preoperative Arg/Gln/HMB reduced postoperative inflammatory cytokines, consistent with accelerated tissue recovery pathways.

PubMed ID: 36501014

Functional improvements and marked fatigue reduction in long COVID suggest faster functional tissue/physiologic recovery with L-arginine+vitamin C.

PubMed ID: 35426778

Oral L‑arginine in children with sickle crisis reduced TRV and improved cardiopulmonary indices acutely, aiding recovery from crisis.

PubMed ID: 33075179

L‑arginine shortened time‑to‑crisis‑resolution and hospital stay in sickle‑cell VOC—strong clinical evidence of quicker recovery from acute tissue‑pain crisis.

PubMed ID: 30710211

Preoperative arginine+glutamine markedly reduced fistula recurrence and infections — clear evidence for faster tissue healing/recovery.

PubMed ID: 29672184

Six months of HMB+arginine+glutamine increased lean mass and improved function in older adults, consistent with enhanced muscle maintenance/repair.

PubMed ID: 28162818

Preoperative immunonutrition decreased complications and LOS and blunted albumin drop after major pancreatic procedure — indicates accelerated recovery/tissue resilience.

PubMed ID: 26965712

Preoperative immunonutrition with arginine reduced infections and IL‑6, increasing pro‑resolution mediator resolvin E1—supports quicker tissue healing/recovery.

PubMed ID: 25237981

EAA medical food rapidly lowered pain and inflammatory markers in chronic low back pain, consistent with accelerated symptomatic tissue recovery.

PubMed ID: 27038614

Perioperative arginine‑containing immunonutrition shortened hospital stay and reduced postoperative inflammation after hip replacement—strong clinical tissue‑recovery signal.

PubMed ID: 28336107

Enteral nutrition enriched with arginine/glutamine reduced early postoperative deaths and likely improved early postoperative tissue resilience and recovery.

PubMed ID: 25855918

High-dose arginine enteral formula after surgery reduced length of stay and fistula rates—consistent with quicker tissue/clinical recovery.

PubMed ID: 25643304

Arginine-enriched, high-protein oral formula produced significantly greater pressure-ulcer area reduction at 8 weeks.

PubMed ID: 24867069

Direct RCT evidence: oral arginine‑glutamine‑HMB formula significantly improved diabetic foot‑ulcer healing rates in subgroups with low albumin/poor perfusion—strong support for tissue recovery.

PubMed ID: 24073527

8% arginine in-office paste reduced dentin hypersensitivity more than control immediately—supports quicker symptomatic tissue recovery.

PubMed ID: 23329787

Enteral L-arginine substantially reduced severe NEC in VLBW infants—important protection/repair of GI tissue.

PubMed ID: 23812551

Arginine-enriched enteral nutrition improved postoperative immune recovery and survival—supports tissue recovery after surgery.

PubMed ID: 23380274

Arginine toothpaste/mouthwash regimen achieved faster and greater dentine sensitivity relief than controls.

PubMed ID: 23661523

Postoperative arginine-containing formula improved protein markers and increased fat‑free mass—consistent with improved surgical recovery.

PubMed ID: 22988687

Single pre‑prophylaxis arginine paste produced large immediate reductions in dentin hypersensitivity—rapid tissue/symptom recovery.

PubMed ID: 22313068

L-arginine in cardioplegia reduced oxidative stress and improved early diastolic function—signals faster cardiac tissue recovery (clinical trial).

PubMed ID: 21807930

HMB+arginine+lysine increased fat-free mass in older adults, consistent with improved muscle anabolism/repair (human RCT).

PubMed ID: 20598855

Randomized double‑blind trial: arginine‑ and nutrient‑enriched oral supplement markedly accelerated healing of severe pressure ulcers—strong direct evidence for faster tissue recovery.

PubMed ID: 21058198

Perioperative immunonutrition (including arginine) reduced postoperative infections/wound complications—consistent with quicker/wisely healed tissue recovery (multi‑nutrient).

PubMed ID: 21284343

High‑dose arginine enteral nutrition significantly reduced postoperative wound fistula rates—surgical tissue‑recovery benefit.

PubMed ID: 20881073

Perioperative arginine‑enriched nutrition improved long‑term surgical outcomes in malnourished patients—consistent with better tissue recovery and resilience.

PubMed ID: 19842559

Arginine‑enriched enteral feeding in burn patients improved nutritional markers and lymphocyte preservation—supports faster tissue/physiologic recovery after severe injury.

PubMed ID: 19536417

EAAs/whey increased nonfasting IGF‑I, lean mass and improved function in undernourished elderly, supporting muscle repair/maintenance.

PubMed ID: 19164608

Long-term HMB+arginine+lysine increased protein turnover and lean mass in elderly — supports muscle repair processes.

PubMed ID: 19629583

Preoperative immunonutrition containing arginine+omega‑3 reduced infections and shortened SIRS duration—supports faster recovery of surgical tissues.

PubMed ID: 19694342

Enteral arginine reduced fistulas and shortened hospital stay after head & neck cancer surgery—accelerated postoperative tissue recovery.

PubMed ID: 18007263

Amino‑acid enriched enteral feeding (glutamine dipeptides/arginine included) associated with faster organ‑function recovery in septic ICU patients.

PubMed ID: 18449445

Arginine‑enhanced enteral nutrition reduced postoperative infections, which can facilitate quicker overall recovery (multi‑nutrient formula confounds attribution).

PubMed ID: 17215743

HMB (±Arg/Glut) improved nitrogen balance during recovery in injured patients—evidence for faster restoration of tissue protein.

PubMed ID: 16564254

L‑arginine added to cardioplegia reduced myocardial injury marker (troponin) and ICU stay after CABG—evidence of accelerated tissue/clinical recovery.

PubMed ID: 17175635

Severely injured patients given oral arginine had shorter wound healing time and hospital stay in the trauma subgroup (multicenter RCT subgroup benefit).

PubMed ID: 16929239

Arginine-enhanced enteral feeding after head/neck surgery substantially reduced fistula rates—clear tissue-recovery outcome.

PubMed ID: 15681102

Strong human surgical evidence: arginine-containing formula markedly increased wound collagen and eliminated wound complications—direct tissue-recovery benefit (multinutrient).

PubMed ID: 16196295

Arginine-containing enteral feeding after GI surgery improved endotoxin-inactivation capacity and slightly shortened hospital stay—evidence for faster tissue/clinical recovery (multi-component formula).

PubMed ID: 15105032

HMB+arginine+lysine increased whole‑body protein synthesis and muscle strength—consistent with improved muscle repair/maintenance.

PubMed ID: 15138461

Randomized trial: arginine‑enriched feeding after head & neck surgery reduced fistula rates and shortened hospital LOS — strong evidence for enhanced tissue/wound recovery.

PubMed ID: 12880608

Arginine‑enriched supplement in hip‑fracture patients reduced stage II pressure ulcers (absolute reduction) and tended to delay onset — supports faster tissue repair/maintenance.

PubMed ID: 11975938

HMB/Arg/Gln improved fat‑free mass in cachectic patients — supports muscle repair/anabolism in catabolic disease when used as part of a combination.

PubMed ID: 11899188

L‑arginine cardioplegia associated with lower troponin release after CABG — indicates less myocardial injury and quicker biochemical recovery.

PubMed ID: 11822956

Perioperative immunonutrition including arginine reduced postoperative complications and shortened hospital stay — faster recovery in malnourished surgical patients.

PubMed ID: 12192323

Randomized supplementation with arginine/HMB/glutamine increased collagen deposition in implanted wound models in older adults — direct evidence for faster tissue repair.

PubMed ID: 12464864

Preoperative arginine+n‑3 FA improved gut microperfusion and reduced infections after colorectal surgery — supports quicker/safer recovery.

PubMed ID: 11918749

Evidence that L‑arginine can restore renal perfusion and improve early graft function in selected transplant patients — organ recovery benefit.

PubMed ID: 12428179

Arginine‑enriched perioperative feeding markedly reduced fistula formation after head & neck surgery — a clear clinical signal of improved wound/tissue recovery.

PubMed ID: 10752808

Reduced infections and mortality with arginine-containing immune feed in septic ICU patients implies clinically faster/ better recovery in that setting (multi-nutrient).

PubMed ID: 10850936

HMB/glutamine/arginine assisted weight/lean mass gain and improved immune markers in wasting patients, supporting recovery from catabolic disease states.

PubMed ID: 9737282

Glutamine-supplemented feeding reduced infectious complications and supports faster clinical recovery in trauma patients.

PubMed ID: 8857857

Trauma patients given an immune‑enhancing formula including arginine/glutamine had fewer infections and shorter stays—clinical indicator of faster recovery (combined nutrients).

PubMed ID: 7536138

Arginine‑supplemented enteral diet improved postoperative immune and protein markers—consistent with faster surgical tissue recovery (multi-nutrient).

PubMed ID: 8924741

Postoperative arginine‑enriched diet improved nutritional/immunologic markers and reduced hospital stay — benefits for tissue healing/recovery.

PubMed ID: 7735336

Arginine potentiated GH responses, a mechanism relevant to muscle repair and regeneration.

PubMed ID: 8551652

Oral arginine increased IGF‑I and improved nitrogen balance in elderly — anabolic signals supporting muscle repair.

PubMed ID: 7874893

Enteral arginine‑containing formula reduced infections and shortened LOS — supports quicker recovery from critical illness.

PubMed ID: 8342121

Oral arginine increased collagen deposition and total protein in wound catheters—direct evidence of accelerated local tissue repair.

PubMed ID: 1377838

Arginine‑containing enteral nutrition improved nitrogen balance and immune recovery after surgery—supports tissue/muscle repair in perioperative setting (multi‑nutrient).

PubMed ID: 2382229

Oral arginine markedly increased wound collagen deposition in humans — direct, strong evidence for faster tissue healing/recovery.

PubMed ID: 31021358

EAA‑based supplement increased lean mass, strength and power in older adults — supports muscle protein synthesis and repair.

PubMed ID: 7937272

Arginine‑containing enteral formula improved nitrogen balance and reduced infections after major trauma — clinically relevant acceleration of recovery.

PubMed ID: 23043451

Supplement (including arginine‑AKG) after rotator cuff repair improved MRI repair integrity — strong direct evidence for tissue repair acceleration in surgical context.

PubMed ID: 34973853

IV glutamine reduced gut permeability and organ‑injury markers and attenuated hypermetabolic response in severe burn patients — strong support for faster tissue recovery.

PubMed ID: 10202747

Topical Amino-Cerv increased complete cervical healing at 4 weeks vs control—direct clinical evidence of faster tissue repair with an amino-acid product.

PubMed ID: 9249084

Postoperative IV amino acids significantly improved nitrogen balance and early restoration of short‑lived serum proteins—direct evidence for faster tissue recovery after surgical stress.

PubMed ID: 11104589

Alanyl‑glutamine in TPN improved nitrogen balance and shortened hospital stay in surgical patients — direct tissue recovery relevance.

PubMed ID: 35964137

Perioperative glutamine+arginine+HMB reduced cardiac injury markers and shortened ICU/hospital stay — strong clinical tissue‑recovery signal.

PubMed ID: 33369879

EAAs maintained whole‑body protein synthesis during HIIT and supported regional lean mass gains — supports muscle repair processes.

PubMed ID: 30180236

L‑arginine mouthwash accelerated mucosal lesion healing — direct evidence of faster local tissue recovery.

PubMed ID: 11819790

Enteral feeding with arginine/glutamine improved immune and inflammatory markers post GI cancer surgery supportive of improved tissue healing.

PubMed ID: 41101508

Whey raised plasma EAAs/leucine substantially (mechanistic substrate for muscle repair), but no acute additional MPS vs exercise at the tested dose.

PubMed ID: 38215886

Whey/ketone/protein interventions increased MyoPS vs fasting and prolonged aminoacidemia, supporting repair processes.

PubMed ID: 38892621

EAA plus resistance exercise produced lean‑mass gains and favorable myokine changes consistent with improved recovery/adaptation.

PubMed ID: 37272441

Alpha‑glutamyl‑tryptophan enhanced gastric gland regeneration—evidence of accelerated tissue repair in a nonmuscle tissue.

PubMed ID: 36856692

Perioperative EAA supplementation significantly improved long-term muscle volume and strength after knee replacement—strong clinical evidence for muscle repair and rebuilding.

PubMed ID: 35286282

CEAA given after fracture cut postoperative complications and reduced early muscle loss — strong evidence for improved tissue/functional recovery.

PubMed ID: 35512762

EAA supplementation after resistance exercise in sarcopenic older adults increased skeletal muscle mass vs exercise alone — indicative of improved muscle remodeling/repair.

PubMed ID: 34579066

Prolonged‑release EAA formulation led to lower AA peaks, reduced urea production and better nitrogen utilization — directly supports muscle protein sparing/repair.

PubMed ID: 34191423

Long‑term EAA supplementation with exercise improved muscle mass and function in older adults—consistent with enhanced repair/adaptation.

PubMed ID: 33009977

EAA‑rich elemental diet preserved muscle mass and amino‑acid markers during chemotherapy — supports repair under catabolic stress.

PubMed ID: 32498426

Prolonged‑release EAA reduced markers of AA breakdown and sustained EAA exposure — supports post‑injury/muscle repair.

PubMed ID: 32475274

Perioperative EAAs reduced muscle wasting, improved albumin and pain and shortened time to ADL recovery—direct evidence for faster tissue/functional recovery.

PubMed ID: 29750251

Daily EAA (15 g) increased EAA‑stimulated muscle protein synthesis and, with exercise, improved strength—supports muscle repair capability.

PubMed ID: 29895309

Increased protein delivery and serum AA elevations in enteral feeding support tissue repair and recovery in critically ill patients.

PubMed ID: 29473247

D‑methionine reduced oral ulceration/erythema and grade ≥2 oral pain after radiotherapy — direct tissue recovery benefit.

PubMed ID: 29948444

Ketoanalogues protected muscle mass in CKD patients, suggesting improved recovery/preservation in catabolic states.

PubMed ID: 30096200

EAA‑enriched RUTF restored plasma EAAs in SAM children, supporting tissue restoration during nutritional rehabilitation.

PubMed ID: 29667153

EAAs during rehabilitation improved walking recovery after hip fracture, consistent with faster musculoskeletal tissue/functional recovery.

PubMed ID: 30089292

EAAs increased appendicular muscle in older men, consistent with enhanced muscle repair/anabolism over weeks.

PubMed ID: 29505140

Protein/EAA‑rich formula after infant heart surgery produced earlier positive nitrogen balance and higher plasma EAAs, indicating faster tissue/anabolic recovery.

PubMed ID: 27049103

Intranasal T‑LysYal® improved symptoms, endoscopic findings and inflammatory cells after sinus surgery—evidence for quicker local tissue recovery in humans.

PubMed ID: 26864356

Exercise plus whey/EAAs/vitamin D increased fat‑free mass in older sarcopenic adults, supporting muscle repair/adaptation though effects are multicomponent.

PubMed ID: 25765536

Topical L-tryptophan produced faster re‑epithelialization in chronic leg ulcers — direct, clinically relevant tissue healing evidence.

PubMed ID: 26216195

Whey protein supplementation in post‑op hip fracture patients improved leg strength and functional recovery, indicating enhanced muscle repair/rehabilitation.

PubMed ID: 26004031

EAA drink combined with physiotherapy improved functional recovery (6MWD) in ICU survivors, indicating quicker functional/tissue recovery.

PubMed ID: 25644344

Whey-supported MPS during calorie restriction suggests improved capacity to recover/maintain muscle tissue under stress.

PubMed ID: 25317071

Daily EAA drinks during bed rest modified muscle outcomes; resistance exercise with EAAs preserved muscle density better than EAAs alone.

PubMed ID: 25431770

EAA supplementation converted muscle from net catabolism to net uptake in subacute stroke patients (direct muscle repair/anabolism evidence).

PubMed ID: 23930712

Dietary lysine influenced muscle amino acid profile and feed efficiency in fish — indicates contribution to muscle accretion/repair (nonhuman).

PubMed ID: 23881680

Dietary lysine improved growth and lean measures in pigs — relevant to tissue accretion and recovery capacity (animal evidence).

PubMed ID: 24355438

Sustained systemic EAA availability from pulse protein feeding supports repeated anabolic responses needed for repair.

PubMed ID: 22338070

Dose‑dependent increases in amino acid availability and muscle protein synthesis with EAA‑rich whey directly support muscle repair processes.

PubMed ID: 23193843

12-week oral EAA in COPD patients increased fat-free mass and muscle strength—consistent with improved muscle repair/maintenance.

PubMed ID: 22307494

EAA supplementation in rehab patients reduced infections and may support faster overall tissue/clinical recovery.

PubMed ID: 21499725

Lysine‑hyaluronate significantly accelerated pressure‑ulcer healing across stages—strong evidence for faster tissue recovery.

PubMed ID: 22204799

Adjunct tryptophan or melatonin with omeprazole produced complete ulcer healing by day 21 versus lower rates with omeprazole alone.

PubMed ID: 21362032

L-tryptophan accelerated gastroduodenal ulcer healing in humans, a clear tissue-repair benefit.

PubMed ID: 22142410

Exercise + EAA improved leg mass and knee strength in sarcopenic elderly, consistent with enhanced repair/adaptation.

PubMed ID: 21636183

EAA supplementation improved grip strength and nutritional markers in elderly, supporting muscle maintenance and repair.

PubMed ID: 20973462

Quality-protein maize improved weight/height recovery in children, indicating faster recovery from malnutrition-related tissue deficits.

PubMed ID: 20928906

EAAs during bed rest influenced catabolic/anabolic transcripts and preserved more muscle when combined with resistance exercise.

PubMed ID: 18514630

EAA supplementation increased lean mass and anabolic markers in sarcopenic elderly, consistent with enhanced muscle repair capacity.

PubMed ID: 18835539

8 g/day EAA in muscle-wasted CHF patients increased weight and improved exercise capacity and metabolic markers — supports muscle rebuilding/repair.

PubMed ID: 18483167

Timed essential amino acids with resistance exercise strongly attenuated muscle-area and strength loss during 28 d bed rest, indicating robust muscle repair/maintenance effect.

PubMed ID: 16472979

Ingestion of EAAs around resistance exercise reduced cortisol and raised insulin—favorable for muscle protein balance and repair.

PubMed ID: 16631431

CHO+EAA during resistance exercise strongly reduced myofibrillar protein degradation (3‑MH), directly supporting muscle repair.

PubMed ID: 16456674

CHO+EAA decreased markers of proteolysis and improved anabolic signaling post-resistance exercise—direct evidence supporting faster tissue/muscle recovery.

PubMed ID: 15809910

L‑histidine in ORS reduced stool output/frequency and shortened illness duration in cholera—direct evidence for faster clinical recovery of intestinal tissue function during infection.

PubMed ID: 8488172

Cysteine and related agents dramatically lowered duodenal ulcer relapse—evidence of improved mucosal healing/recovery.

PubMed ID: 37716611

Algal proteins increased resting and postexercise myofibrillar protein synthesis, directly relevant to repair.

PubMed ID: 36720768

EAA supplement in older adults produced proteomic changes and functional gains consistent with improved muscle quality/repair.

PubMed ID: 28635634

Oral EAA in hip‑fracture patients improved albumin/Hb and reduced infections—supports accelerated recovery.

PubMed ID: 24257722

Defined an effective protein dose for maximal MPS (20 g), informing repair‑focused dosing strategies.

PubMed ID: 19660844

Protein supplementation (casein/whey/whey+EAA) raised serum IGF‑I within one week after hip fracture—biomarker consistent with accelerated tissue/anabolic recovery.

PubMed ID: 31152658

Dairy proteins producing higher post-exercise EAA levels significantly increased myofibrillar protein synthesis — directly supports muscle repair.

PubMed ID: 41228401

Direct measurement of plasma EAA availability and increased myofibrillar protein synthesis in older men — strong mechanistic support for muscle repair.

PubMed ID: 38315260

Direct measurement of myofibrillar muscle protein synthesis after ingestion supports EAAs' role in muscle repair.

PubMed ID: 39683384

Raising plasma EAAs via improved digestion (probiotic) accompanied by increased muscle mass, indicating enhanced anabolic substrate availability for repair.

PubMed ID: 39739679

Dileucine improved strength and repetitions during training, consistent with enhanced muscle adaptation/repair.

PubMed ID: 39770886

Leucine‑enriched EAA with rehabilitation preserved body mass and improved function trends in stroke patients—supports tissue/functional recovery.

PubMed ID: 36940921

Clinical postoperative evidence: BCAA + vitamin D accelerated recovery of leg muscle strength after lumbar surgery.

PubMed ID: 36437767

Leucine‑enriched whey combined with training increased muscle mass/strength and sustained gains after detraining—supports enhanced repair/adaptation.

PubMed ID: 36364828

Multi‑nutrient containing leucine improved muscle function in sarcopenic older adults, consistent with improved repair/maintenance (but multi‑ingredient).

PubMed ID: 33588378

Evening resistance exercise plus presleep casein (EAA source) increased overnight muscle connective tissue protein synthesis and dietary AA incorporation — direct evidence for muscle repair processes.

PubMed ID: 34836020

HMB-enriched ONS improved amino-acid profiles in malnourished cirrhotics, supporting more rapid nutritional/tissue recovery.

PubMed ID: 33379181

Leucine-enriched whey improved lean mass and metabolic markers with exercise—supports enhanced recovery/adaptation.

PubMed ID: 32486007

Leucine-matched protein increased lean mass with training—supports role of EAAs in repair/adaptation.

PubMed ID: 31278117

Whey+leucine+vitamin D preserved/increased skeletal muscle mass during rehab—clinical evidence of muscle preservation/repair during recovery.

PubMed ID: 31504110

EAA mix preserved intestinal villus structure and reduced barrier leak — direct evidence of accelerated/maintained mucosal tissue integrity.

PubMed ID: 30273819

Leucine‑enriched EAA supplement with resistance training increased muscle mass and functional ability in post‑stroke patients—evidence of enhanced repair/adaptation.

PubMed ID: 28381530

Clear dose‑dependent improvement in whole‑body leucine balance after protein/leucine ingestion—biomarker of improved post‑exercise anabolism/repair.

PubMed ID: 28285641

Direct evidence that EAA-only supplement substantially increases net protein gain, supporting muscle repair processes.

PubMed ID: 27440260

Wheat hydrolysate at sufficient dose restored MyoPS similar to casein/whey—demonstrates EAA dosing can speed restoration of muscle protein synthesis (tissue recovery).

PubMed ID: 27075909

Clinical improvements in muscle function and strength in frail elderly suggest enhanced muscle maintenance/repair with leucine‑containing supplement.

PubMed ID: 26008820

EAA‑rich fast‑digesting milk protein substantially increased myosin and mitochondrial protein FSR—direct evidence supporting muscle repair/anabolism.

PubMed ID: 26308291

Leucine-enriched whey increased MPS—direct mechanism for faster tissue recovery.

PubMed ID: 25444576

Soluble milk proteins with exercise increased muscle mass, implying enhanced repair/adaptation to training.

PubMed ID: 24015719

Whey (high‑leucine) improved lean mass accrual during training, reflecting enhanced net tissue recovery/adaptation.

PubMed ID: 24284442

High leucine supplementation after exercise substantially increased myofibrillar protein synthesis, indicating faster tissue recovery.

PubMed ID: 23260415

ACL rehabilitation results indicate some benefit for postoperative tissue recovery with leucine.

PubMed ID: 21367943

Whey (higher leucine) produced higher postprandial mixed-muscle FSR vs casein — supportive of enhanced muscle repair processes.

PubMed ID: 21766553

L‑isoleucine reduced stool output and ORS needs and raised mucosal HBD‑3 — direct evidence of faster mucosal/clinical recovery in pediatric diarrhoea.

PubMed ID: 20975109

Whey+leucine increased lean mass and strength—clinical support that amino acid/protein supplementation enhances anabolic processes assisting tissue recovery, though direct tissue-repair endpoints were not measured.

PubMed ID: 16627891

In very low birthweight infants early IV amino acids increased leucine incorporation into body protein — supports faster tissue growth/recovery.

PubMed ID: 16125527

Enhanced protein turnover in elderly under anabolic treatment suggests improved capacity for tissue recovery.

PubMed ID: 12538787

Splanchnic leucine uptake increased with enteral feeding in preterm infants — suggests enhanced local protein synthesis and tissue recovery potential.

PubMed ID: 8941534

HMB reduced proteolysis and markers of muscle damage and increased fat-free mass during training—supports muscle repair.

PubMed ID: 7525682

Amino-acid copolymer dressing accelerated healing of pressure ulcers compared with a hydrocolloid dressing (direct tissue-recovery evidence).

PubMed ID: 37447197

Pork/eggs increased postprandial EAA availability vs plant foods in both age groups—improved EAA delivery can support muscle repair.

PubMed ID: 30096200

EAA‑enriched RUTF supported restoration of plasma EAAs in severe acute malnutrition—facilitating nutritional/tissue recovery.

PubMed ID: 23043451

After rotator cuff repair, multi‑ingredient supplement containing arginine‑AKG reduced pain and improved MRI repair integrity — clinically meaningful recovery signals.

PubMed ID: 7937272

Arginine‑containing enteral nutrition reduced infections and improved nitrogen balance in trauma patients — clinically meaningful faster/safer recovery.

PubMed ID: 31021358

EAA supplement improved muscle mass and strength in older adults — can translate to faster functional recovery after stress/illness.

PubMed ID: 24589090

Preoperative immunonutrition with arginine reduced infectious complications and modulated immune/eicosanoid markers, facilitating recovery.

PubMed ID: 2382229

Oral arginine increased collagen deposition in wounds and boosted lymphocyte mitogenesis — strong direct evidence for faster tissue healing/recovery.

PubMed ID: 1377838

Immunonutrition with arginine reduced postoperative infections and improved nitrogen balance—translates to faster clinical/immune recovery after surgery (multi‑component formula).

PubMed ID: 8342121

Arginine increased wound catheter hydroxyproline and total protein—direct evidence of enhanced local tissue repair supporting faster recovery.

PubMed ID: 7874893

Enteral arginine‑containing formula shortened hospital stays and reduced infections in high‑risk ICU patients.

PubMed ID: 7539633

Perioperative arginine/RNA/omega‑3 formula accelerated recovery of immune markers after major surgery.

PubMed ID: 8924741

Postoperative arginine‑enriched nutrition improved short‑term nutritional and immunologic markers and reduced LOS.

PubMed ID: 7536138

Arginine‑supplemented enteral diet improved postoperative immune measures—consistent with accelerated recovery after surgery (multi-nutrient formula).

PubMed ID: 8857857

Immune‑enhancing formula (including arginine) in trauma patients greatly reduced major infections and shortened stays—strong clinical recovery endpoint (combined nutrients).

PubMed ID: 9295822

Perioperative arginine‑containing enteral diet lowered late postoperative infectious complications and treatment needs—supports quicker post‑surgical recovery.

PubMed ID: 35286282

Twice‑daily CEAA after fracture reduced postoperative complications and attenuated early fat‑free mass loss — strong evidence for accelerated/safer recovery.

PubMed ID: 36856692

Perioperative EAAs improved long-term recovery of quadriceps size and strength after TKA versus placebo (direct RCT evidence for accelerated functional recovery).

PubMed ID: 37272441

Alpha‑glutamyl‑tryptophan improved histologic gastric regeneration, indicating tissue‑repair effects of a tryptophan derivative.

PubMed ID: 38892621

RE+EAA produced greatest lean‑mass gains and myokine changes over 4 weeks, consistent with expedited adaptation/recovery.

PubMed ID: 38215886

Protein and ketone/protein increased MyoPS above fasting and prolonged aminoacidemia, which can aid postexercise recovery.

PubMed ID: 28336107

Enteral nutrition enriched with arginine/glutamine reduced early postoperative mortality after gastric cancer surgery—reflects improved short‑term recovery/resilience.

PubMed ID: 27038614

Preoperative immunonutrition (arginine‑containing) shortened hospital stay and lowered postoperative CRP after hip replacement (clinically faster recovery).

PubMed ID: 25237981

Essential‑AA medical food decreased pain/disability and inflammation in chronic low back pain over 28 days, consistent with improved recovery from chronic musculoskeletal symptoms.

PubMed ID: 26937858

Early enteral feeding (with higher AA exposure via enteral route) improved postoperative ileus/leak rates and shortened hospital stay — clinical recovery signal though AA levels not causal.

PubMed ID: 15336814

Adding L‑arginine to cardioplegia reduced biochemical infarction markers and shortened ICU/hospital stays after CABG—clinically meaningful faster recovery.

PubMed ID: 15105032

Improved functional get‑up‑and‑go time and increased protein synthesis in elderly women suggests enhanced recovery/functional resilience.

PubMed ID: 15138461

Arginine‑enriched postoperative feeding reduced fistula rates and shortened hospital stay — clear clinical recovery benefit.

PubMed ID: 11975938

HMB/Arg/Gln improved lean mass in advanced cancer patients and QoL — supports recovery/rehabilitation in catabolic states (multi‑nutrient intervention).

PubMed ID: 11899188

L‑arginine added to cardioplegia lowered troponin release after CABG (less biochemical myocardial injury) — suggests improved early myocardial recovery.

PubMed ID: 11822956

Perioperative immunonutrition with arginine reduced complications and shortened hospital stay in malnourished surgical patients.

PubMed ID: 12192323

Supplement with arginine/HMB/glutamine increased collagen deposition in wound models in older adults — direct evidence of enhanced tissue repair and recovery.

PubMed ID: 25855918

High-dose arginine enteral formula after head & neck surgery shortened hospital stay and reduced fistula incidence (faster clinical recovery).

PubMed ID: 16196295

Arginine-containing feeding after GI surgery improved endotoxin-inactivation capacity and shortened hospital stay by ~1 day—functional faster recovery evidence.

PubMed ID: 15681102

Post-gastrectomy patients receiving an arginine-containing formula showed much greater wound collagen and zero wound-healing complications vs control—strong clinical recovery signal (multinutrient formula).

PubMed ID: 16929239

High-arginine enteral feeding after head/neck surgery markedly reduced wound fistula rates—clear surgical recovery benefit.

PubMed ID: 17175635

Oral arginine shortened wound healing time and hospital stay in severe trauma subgroup (multicenter RCT subgroup effect).

PubMed ID: 16564254

Adding L‑arginine to cardioplegia reduced troponin T and ICU stay after CABG—clinical signal for faster postoperative recovery.

PubMed ID: 17215743

HMB (with/without Arg/Gln) improved nitrogen balance in injured patients vs placebo—supports recovery of protein stores.

PubMed ID: 18449445

Arginine‑enhanced enteral nutrition lowered postoperative infection rates, which can speed clinical recovery (multi‑nutrient formula confounds attribution).

PubMed ID: 18007263

Supplementation (glutamine dipeptides and others) in septic ICU was associated with faster decline in SOFA scores (quicker organ‑function recovery).

PubMed ID: 19694342

Enteral arginine supplementation reduced fistula frequency and shortened postoperative length of stay after head & neck surgery—clear faster surgical recovery.

PubMed ID: 19629583

Preoperative arginine‑containing immunonutrition reduced infections and shortened SIRS duration after gastrectomy—faster postoperative recovery.

PubMed ID: 19842559

In burn patients arginine‑enriched feeding improved nutritional markers and lymphocyte preservation—supports faster physiologic recovery after injury.

PubMed ID: 20881073

Perioperative arginine‑enriched nutrition improved long‑term outcomes in malnourished surgical cancer patients—consistent with improved recovery/resilience.

PubMed ID: 21284343

High‑dose arginine enteral nutrition reduced postoperative wound fistula incidence after head/neck surgery—clinically meaningful surgical recovery benefit.

PubMed ID: 21058198

Perioperative immunonutrition reduced postoperative infections/wound complications, implying faster/safer recovery (multi‑nutrient formula including arginine).

PubMed ID: 20598855

Randomized trial: arginine‑ and nutrient‑enriched oral supplement accelerated healing of severe pressure ulcers—strong clinical recovery outcome (multinutrient).

PubMed ID: 22313068

L-arginine–supplemented cardioplegia reduced oxidative stress and improved early diastolic function after surgery (clinical recovery marker).

PubMed ID: 22988687

Single pre-prophylaxis 8% arginine paste produced large immediate reductions in sensitivity—rapid local tissue symptom relief.

PubMed ID: 23661523

Postoperative patients given arginine-containing formula had improved protein markers and weight gain at higher dose, consistent with improved recovery.

PubMed ID: 23812551

Arginine‑enriched enteral nutrition improved immune recovery postoperatively and was associated with longer survival—supports recovery from surgery.

PubMed ID: 23329787

Enteral L-arginine reduced severe NEC in VLBW infants—faster/safer recovery from a severe neonatal GI complication.

PubMed ID: 24073527

Professional 8% arginine paste reduced dentin hypersensitivity more than control immediately—supports quick symptomatic recovery.

PubMed ID: 24867069

Large multicenter RCT of Arg/Gln/HMB oral formula showed significantly improved diabetic foot‑ulcer healing in nutritionally/vascular‑compromised subgroups—direct evidence for faster tissue recovery.

PubMed ID: 25643304

Arginine/zinc/antioxidant-enriched high-protein formula significantly improved pressure-ulcer healing vs control.

PubMed ID: 26965712

Preoperative arginine‑containing formula reduced infections and inflammation after major surgery, facilitating faster postoperative recovery.

PubMed ID: 28162818

Preoperative immunonutrition shortened hospital stay, reduced complications and blunted albumin drop after surgery — clear faster recovery signal.

PubMed ID: 30710211

Perioperative arginine+glutamine greatly lowered fistula recurrence and infectious complications, indicating faster/safer surgical recovery.

PubMed ID: 31146957

Nutritional support (arginine+glutamine+fish oil) during chemoradiation reduced severe hematologic toxicity and tended to improve treatment completion.

PubMed ID: 33075179

Oral L‑arginine in pediatric sickle‑cell VOC substantially reduced analgesic needs, hastened pain relief and shortened hospital stay—strong clinical evidence for faster recovery from pain crises.

PubMed ID: 36501014

L-arginine+vitamin C markedly reduced fatigue prevalence and improved 6‑min walk and strength in long COVID, indicating accelerated functional recovery.

PubMed ID: 35148750

Preoperative multi‑amino acid supplement (Arg/Gln/HMB) lowered postoperative inflammatory markers, consistent with faster biochemical recovery.

PubMed ID: 36449096

Oral L-arginine (3 g/day) accelerated healing and reduced pain in chronic anal fissure versus placebo—direct clinical tissue-healing benefit.

PubMed ID: 36982151

28-day L-arginine + vitamin C in long-COVID improved arginine bioavailability and was associated with symptom improvement—supports recovery from post-viral illness.

PubMed ID: 36804278

Robust RCT in hospitalized COVID showed greatly increased chance of reducing respiratory support and shorter hospital stay—direct clinical recovery benefit.

PubMed ID: 37739730

Amino-acid mixture (HMB/Arg/Gln) markedly reduced severe mucositis and diminished weight loss during chemoradiation (clinical recovery benefit).

PubMed ID: 39765161

Preoperative HMB+Arg+Gln improved postoperative 6MWD and shortened hospital length-of-stay (clear faster recovery signals).

PubMed ID: 40603739

Oral L-arginine reduced radiation-induced oral mucositis severity, pain, and prevented weight loss vs placebo.

PubMed ID: 40862485

Oral L-arginine in vaso-occlusive crises reduced pain, analgesic use and hospitalization time (faster clinical recovery).

PubMed ID: 22079390

Nutriceutical including methionine sped healing and lowered recurrences in viral skin lesions.

PubMed ID: 8941534

HMB reduced markers of muscle damage (CK) and proteolysis during training, consistent with faster recovery from exercise-induced damage.

PubMed ID: 12538787

Increased splanchnic leucine uptake with enteral feeding in preterm infants suggests enhanced local protein synthesis/repair capacity.

PubMed ID: 16627891

Early IV amino acids in very low birthweight infants increased leucine incorporation (protein synthesis) — supports quicker recovery/growth in catabolic neonates.

PubMed ID: 20975109

Whey+leucine supplementation led to increased strength and lean mass over 8 weeks; supports faster functional recovery potential though recovery-specific endpoints were not measured.

PubMed ID: 21766553

L‑isoleucine reduced stool output and ORS needs in pediatric diarrhoea — direct evidence of faster clinical recovery.

PubMed ID: 21367943

Whey (high leucine) produced faster and greater postprandial MPS — may speed recovery of muscle protein pools after stress/exercise.

PubMed ID: 23260415

Post-ACL rehab: leucine provided some additional recovery benefit (thigh perimeter/rehab outcomes) vs rehab alone.

PubMed ID: 24284442

High leucine added to a low‑protein drink after resistance exercise stimulated myofibrillar protein synthesis nearly as well as a high‑protein dose—promotes faster muscle recovery.

PubMed ID: 28285641

Marked increase in whole-body net protein gain with EAAs implies improved substrate availability for recovery after tissue/muscle stress.

PubMed ID: 28381530

Dose‑dependent improvement in whole‑body leucine balance after protein/leucine ingestion in active children—supports enhanced anabolic recovery after exercise.

PubMed ID: 30273819

Leucine‑enriched EAA drink combined with resistance training accelerated gains in muscle/functional recovery post‑stroke versus control.

PubMed ID: 33379181

Leucine-enriched whey with exercise improved lean mass and insulin markers in older adults—may aid recovery/adaptation from training.

PubMed ID: 33588378

Exercise + presleep protein increased overnight incorporation of dietary amino acids into muscle connective tissue — supports faster overnight recovery processes.

PubMed ID: 36437767

Leucine‑enriched whey aided maintenance of muscle gains after detraining and with training, implying improved restoration/retention post‑stress.

PubMed ID: 36940921

Postoperative trial: BCAA + vitamin D reduced early postoperative strength loss and accelerated recovery of leg strength.

PubMed ID: 39770886

Leucine‑enriched EAA added to rehab after stroke increased BMI/preserved bone and trended toward better function—suggests faster functional recovery adjunct.

PubMed ID: 31152658

Augmented post-exercise myofibrillar protein synthesis with EAA-rich dairy proteins suggests faster muscle repair/recovery after exercise.

PubMed ID: 19660844

20 g protein supplements raised IGF‑I within one week in elderly hip‑fracture patients—biomarker consistent with enhanced tissue/anabolic recovery.

PubMed ID: 28635634

Improved albumin, Hb and fewer infections in post‑hip‑fracture patients—supports faster clinical recovery.

PubMed ID: 1819034

Optimized EAA dosing improved symptoms and renal markers, indicating faster clinical improvement.

PubMed ID: 8488172

Marked reduction in duodenal ulcer relapse indicates improved mucosal healing/recovery.

PubMed ID: 14581795

IV glutamine in VLBW infants shortened time to full enteral feeding, an indicator of faster clinical recovery.

PubMed ID: 15809910

L‑histidine in ORS reduced stool output/frequency and shortened illness duration in adult cholera patients—direct evidence of faster recovery from infectious diarrhea.

PubMed ID: 16456674

CHO+EAA blunted post-exercise cortisol, raised insulin and reduced proteolysis marker (3-methylhistidine), indicating faster molecular recovery after resistance exercise.

PubMed ID: 16631431

CHO+EAA during resistance exercise markedly reduced markers of muscle proteolysis (3‑MH), supporting faster recovery from exercise-induced breakdown.

PubMed ID: 16472979

EAA (with/without CHO) during resistance exercise markedly attenuated postexercise cortisol rise and increased insulin—supports faster recovery.

PubMed ID: 18483167

Timed EAAs plus resistance training attenuated muscle/strength loss during bed rest, consistent with improved recovery of function during/after disuse.

PubMed ID: 18835539

EAA treatment in muscle-wasted CHF patients improved exercise output and metabolic markers over 2 months, suggesting faster functional recovery.

PubMed ID: 20928906

EAAs during bed rest reduced catabolic markers when combined with resistance exercise and attenuated muscle loss—supports faster recovery of muscle.

PubMed ID: 20973462

Quality protein maize (lysine/tryptophan enriched) reduced growth faltering and aided weight recovery in children (real-world recovery outcome).

PubMed ID: 21362032

L-tryptophan added to omeprazole accelerated gastroduodenal ulcer healing in humans vs omeprazole alone.

PubMed ID: 22204799

Adjunct tryptophan (and melatonin) with omeprazole improved ulcer healing rates—supports faster mucosal recovery.

PubMed ID: 21499725

Lysine‑hyaluronate markedly accelerated pressure‑ulcer healing vs control—strong evidence for faster tissue recovery.

PubMed ID: 22307494

Reduced nosocomial infections in brain-injury rehab with oral EAA suggests faster/safer recovery course in that setting.

PubMed ID: 22338070

Higher EAA availability and greater muscle protein synthesis with larger whey doses suggest improved capacity for tissue recovery.

PubMed ID: 23881680

Dietary lysine improved growth and lean measures in pigs — supports anabolic/reparative capacity (animal evidence).

PubMed ID: 12464864

Preoperative arginine + n‑3 FA reduced postoperative infections and improved gut perfusion after colorectal surgery, indicating faster/more complication‑free recovery.

PubMed ID: 25431770

8 g/day EAA in subacute dysphagic stroke patients shifted muscle from net breakdown to net uptake (strong evidence for accelerating anabolic recovery).

PubMed ID: 11918749

L-arginine restored NO-related renal perfusion and improved early graft function in selected kidney transplant patients — improved organ recovery.

PubMed ID: 12428179

Arginine‑enriched perioperative feeding reduced wound fistula rate and trended to shorter hospital stay — indicates faster surgical/ wound recovery.

PubMed ID: 11819790

Supplemented enteral diet after GI cancer surgery improved immune markers and lowered inflammation vs standard diet — beneficial to postoperative recovery.

PubMed ID: 25644344

Whey protein maintained postprandial MPS better than soy/carbs during caloric restriction, aiding recovery of muscle protein.

PubMed ID: 26004031

ICU survivors receiving structured rehab plus EAA drink had the largest gains in 6MWD and reduced anxiety/depression—direct recovery benefit.

PubMed ID: 26216195

Oral whey protein with rehabilitation after hip fracture improved functional recovery versus control in a randomized trial.

PubMed ID: 25765536

Topical L-tryptophan accelerated wound re-epithelialization and reduced pain in chronic leg ulcers — direct evidence for faster tissue/skin recovery.

PubMed ID: 29505140

Protein/EAA‑rich formula produced earlier positive nitrogen balance (day 2 vs day 5) and higher plasma EAAs after infant heart surgery, indicating faster anabolic recovery.

PubMed ID: 29667153

EAA supplementation during rehab led to greater gains in 6MWD vs rehab/placebo, indicating faster functional recovery after hip fracture.

PubMed ID: 29473247

Oral D‑methionine reduced mucositis severity and pain after radiotherapy — clinically meaningful faster mucosal recovery.

PubMed ID: 29895309

Higher protein delivery and plasma AA levels in critically ill patients support tissue repair and recovery.

PubMed ID: 29750251

EAA supplementation increased EAA‑stimulated muscle protein synthesis pre/post intervention, supporting faster recovery after activity.

PubMed ID: 32475274

RCT: perioperative 9 g/day EAA reduced thigh muscle loss, improved albumin/pain and sped ADL recovery (strong clinical evidence).

PubMed ID: 32498426

Prolonged‑release EAA reduced AA breakdown and provided sustained EAA exposure — may speed recovery by sustaining anabolism.

PubMed ID: 34191423

EAA plus exercise over 24 weeks improved muscle mass and function—consistent with enhanced recovery/adaptation from training.

PubMed ID: 34579066

Prolonged‑release essential amino‑acid formulation reduced amino‑acid oxidation and improved nitrogen utilization versus immediate‑release — favors faster protein repletion/recovery.

PubMed ID: 35512762

EAA + catechins given after resistance exercise increased muscle mass vs exercise alone, facilitating recovery/adaptation after training in sarcopenic older adults.

PubMed ID: 11688933

Arginine/fiber/antioxidant‑enriched high‑protein feed reduced catheter infections in critically ill patients, a recovery-related benefit.

PubMed ID: 10752808

Immune‑enhancing (arginine-containing) enteral formula reduced infections and mortality in septic ICU patients — indicates faster/clinically better recovery in critical illness (multi-nutrient formula).

PubMed ID: 11104591

Arginine‑containing formula after head-and-neck surgery improved immune measures and reduced infections/length of stay in malnourished subgroup.

PubMed ID: 9737282

Glutamine-supplemented enteral nutrition reduced infections in multi-trauma patients and improved clinical recovery endpoints.

PubMed ID: 30180236

Topical L‑arginine mouthwash accelerated denture‑ulcer healing vs comparators — direct tissue/healing benefit.

PubMed ID: 35964137

Perioperative glutamine+arginine+HMB reduced myocardial injury markers and shortened ICU/hospital stay — strong recovery signal.

PubMed ID: 11104589

Alanyl‑glutamine added to TPN improved nitrogen balance and shortened hospital stay in surgical patients.

PubMed ID: 9249084

Randomized postoperative amino-acid infusion improved cumulative nitrogen balance and accelerated restoration of short‑lived serum proteins—clear evidence for faster recovery after stress.

PubMed ID: 34973853

IV glutamine in severe burns reduced markers of gut permeability and organ injury and attenuated hypermetabolism — supports faster clinical recovery.

PubMed ID: 31278117

Whey+leucine+vitamin D preserved/increased skeletal muscle mass in rehabilitation—direct evidence for maintaining lean mass.

PubMed ID: 41228401

EAA/protein blends in older men produced measurable EAA availability and stimulated MPS — supports preserving/maintaining lean mass.

PubMed ID: 31152658

Elevated post-exercise EAA availability increased myofibrillar synthesis — supports preservation/maintenance of lean mass with resistance exercise.

PubMed ID: 7810077

In malnourished chronic renal failure patients, EAAs/ketoanalogues improved albumin and nutritional markers, supporting maintenance of lean body protein.

PubMed ID: 24257722

Shows practical dosing (20 g) to maximize MPS and thus preserve/maintain lean mass in active individuals.

PubMed ID: 28635634

EAA supplementation in elderly hip‑fracture patients improved albumin and Hb and supported clinical recovery—helps preserve lean mass.

PubMed ID: 36839368

Improved formula protein quality supported normal infant growth and BCAA profiles—illustrates protein quality effect on growth/lean mass.

PubMed ID: 36720768

EAA supplement enhanced functional capacity and proteomic markers in older adults consistent with muscle maintenance.

PubMed ID: 1819034

Optimized EAA dosing on low-protein diet improved clinical markers, consistent with preservation of lean mass in renal patients.

PubMed ID: 9581933

Increasing lysine during lactation decreased sow weight and loin eye area loss (minimized tissue loss) — supports lean-mass maintenance in animals.

PubMed ID: 10844622

Oral EAA supplementation modestly raised serum albumin and improved grip strength in hemodialysis patients, consistent with maintained lean mass.

PubMed ID: 15060873

Ketoanalog EAA regimen maintained serum protein parameters in CKD patients — supports nutritional status/lean mass indirectly.

PubMed ID: 15214256

Lysine fortification improved growth and nutritional status in a cereal‑dependent population—supports lean mass accrual/maintenance when diets are limiting.

PubMed ID: 16456674

EAA+CHO after resistance exercise reduced proteolysis and increased muscle fiber size, supporting retention/increase of lean mass.

PubMed ID: 16631431

CHO+EAA markedly suppressed myofibrillar protein degradation during resistance exercise, supporting lean-mass preservation.

PubMed ID: 16762944

Human phenylalanine requirement defines needed intake to achieve nitrogen/protein balance—directly relevant to lean mass maintenance.

PubMed ID: 16472979

EAA (with/without CHO) during resistance exercise blunted cortisol and increased insulin responses—strong evidence supporting preservation of lean mass.

PubMed ID: 18483167

Timed EAAs with resistance training substantially protected midthigh muscle area and limited fat/intramuscular fat increases during bed rest versus AA alone.

PubMed ID: 18514630

EAA supplementation in sarcopenic elderly increased and preserved whole-body lean mass over months — direct support for lean-mass maintenance.

PubMed ID: 19802806

VLP diet + EAAs protected nutritional status while reducing proteinuria—supportive for preserving lean tissue in CKD.

PubMed ID: 20499791

EAAs in frail COPD produced marked increases in FFM and body weight—direct evidence for lean mass maintenance/gain.

PubMed ID: 20928906

EAAs attenuated mid‑thigh muscle loss during bed rest, especially with resistance exercise.

PubMed ID: 20540639

Keto‑acid supplementation preserved plasma essential AA pattern in PD patients, supporting nutritional status and lean mass.

PubMed ID: 21636183

Improved albumin and MNA with EAA intake in elderly suggests nutritional support for maintaining lean mass.

PubMed ID: 22142410

EAA supplementation plus exercise increased leg mass and functional measures in sarcopenic elderly, showing lean-mass preservation/gain.

PubMed ID: 23193843

Oral EAA for COPD increased fat-free mass over 12 weeks—directly supports maintenance/gain of lean mass in ill outpatients.

PubMed ID: 22879453

Protein-energy supplement with EAAs slowed functional decline and preserved performance and gait speed in frail elders (lean-mass–preserving effect).

PubMed ID: 22338070

Dose‑dependent increases in whole‑body net protein balance and muscle protein accretion with higher EAA exposure support lean mass maintenance.

PubMed ID: 24355438

Sustained systemic EAA exposure in older hospitalized patients supports anabolic stimulus necessary to preserve lean mass.

PubMed ID: 23361591

Histidine reduced fat mass in obese women; while lean mass was not strongly emphasized, improved body composition suggests preservation of lean mass during fat loss.

PubMed ID: 23881680

Lysine increased lean measures in pigs as dietary lysine rose — strong animal evidence that adequate lysine preserves/builds lean mass.

PubMed ID: 25431770

EAA reversed muscle hypercatabolism in subacute stroke patients—evidence for preserving/maintaining lean mass.

PubMed ID: 25644344

Whey protein blunted the decline in postprandial myofibrillar MPS during caloric restriction vs soy/carb, strongly supporting lean-mass maintenance.

PubMed ID: 26004031

EAA drink with physiotherapy improved walking distance and psychological outcomes in ICU survivors, consistent with preserved function/lean mass during recovery.

PubMed ID: 26216195

Whey protein with rehab improved post‑op strength and functional items, consistent with preserving/rehabilitating lean mass in older patients.

PubMed ID: 26864356

Exercise + whey/EAAs/vitamin D increased fat‑free mass in sarcopenic older adults, supporting maintenance/increase of lean mass (multicomponent study).

PubMed ID: 30089292

Participants gained muscle (ASM/H2) and reduced body fat while taking EAAs—directly indicates preservation/improvement of lean mass.

PubMed ID: 29948444

Ketoanalogues + low protein diet prevented decreases in muscle body mass vs diet alone in CKD patients over 14 months.

PubMed ID: 29895309

Very‑high‑protein enteral feeding substantially increased protein intake and serum AAs, supporting lean mass maintenance in ICU patients.

PubMed ID: 32475274

Perioperative 9 g/day EAA markedly reduced disuse thigh muscle loss and improved nutritional markers—strong evidence for lean mass maintenance.

PubMed ID: 32498426

Prolonged‑release EAAs reduced markers of AA breakdown and provided sustained availability — supports lean mass maintenance.

PubMed ID: 33009977

EAA‑rich elemental diet tended to preserve body weight and muscle mass during chemotherapy (clinical setting).

PubMed ID: 33317565

Protein (peanut) + resistance training increased mCSA and muscle thickness, supporting lean mass accrual.

PubMed ID: 34191423

EAA supplementation with exercise increased skeletal muscle mass index in older adults, indicating lean mass maintenance/gain.

PubMed ID: 33475727

Tailored EAA improved strength and reduced fat while increasing walking distance—consistent with improved lean mass/function in older adults.

PubMed ID: 34579066

Prolonged‑release EAA formulation significantly lowered urea production and improved nitrogen utilization vs immediate‑release, strongly supporting lean‑mass maintenance.

PubMed ID: 35512762

EAA supplementation (with resistance exercise) increased skeletal muscle mass in sarcopenic older adults, directly supporting lean mass maintenance/gain.

PubMed ID: 35286282

CEAA after fracture reduced early FFM loss relative to control, showing preservation of lean mass during recovery.

PubMed ID: 36379387

Soy-protein LPD group preserved lean mass better than conventional LPD over 12 months in CKD patients (clinical RCT data).

PubMed ID: 36856692

Perioperative EAAs led to sustained increases in muscle area and strength—evidence of lean-mass preservation and accrual.

PubMed ID: 39203745

Observational association between low methionine and higher rates of sarcopenia and worse functional outcomes in malnourished adults—supports importance of EAAs for lean mass.

PubMed ID: 38892621

RE+EAA produced the most pronounced lean‑body mass gains over 4 weeks; EAA alone altered myokines though not mass.

PubMed ID: 38735574

Older‑adult lysine requirement data are relevant to maintaining lean mass through adequate intake.

PubMed ID: 40381110

Leucine-enriched BCAA increased lean muscle mass (+0.4 kg) vs placebo in elderly CKD patients—direct clinical evidence for maintaining/increasing lean mass.

PubMed ID: 38315260

Adequate protein dose (regardless of source) supported MPS, which is central to preserving lean mass.

PubMed ID: 39683384

Probiotic-mediated increase in plasma EAAs was associated with higher lean mass and muscle mass gains.

PubMed ID: 38257103

Leucine increased FFM and ASMM, indicating preservation/augmentation of lean mass in a frail clinical group.

PubMed ID: 38728455

LEAA increased muscle density in older knee OA patients over 8 weeks, supporting preservation of lean tissue quality.

PubMed ID: 39770886

Leucine‑enriched EAA in post‑stroke rehab increased BMI and preserved bone/mineral content versus control—direct evidence of lean mass maintenance.

PubMed ID: 39245679

Low BCAA (leucine) strongly associated with mortality in malnourished inpatients; supports clinical importance of maintaining BCAAs/lean mass.

PubMed ID: 37923932

Leucine during energy restriction significantly preserved/increased FFM (~+0.96 kg) — strongest direct evidence among these for lean-mass maintenance.

PubMed ID: 37375630

In sarcopenic cancer patients, leucine‑enriched supplement maintained muscle mass and nutritional status over 12 weeks (no superior mass gain but preservation).

PubMed ID: 36437767

Leucine‑enriched whey with training preserved gains after detraining and supported ASMI increases—evidence for lean mass maintenance.

PubMed ID: 36364828

Intervention prevented declines in appendicular lean mass vs placebo in sarcopenic older adults (multi‑ingredient study).

PubMed ID: 33588378

In older men, exercise + presleep protein increased overnight muscle protein synthesis and incorporation of dietary AAs into connective tissue — supports maintenance of lean mass.

PubMed ID: 34836020

HMB-enriched ONS increased BCAAs and improved amino-acid markers in malnourished cirrhotics—supports preservation/repletion of lean mass in at-risk patients.

PubMed ID: 33030983

In calorie restriction, a greater proportion of leucine users preserved/gained lean mass (trend in small trial).

PubMed ID: 33379181

Leucine-enriched whey + vitamin D preserved and increased total and appendicular lean mass in older adults—strong evidence.

PubMed ID: 32570811

Leucine‑enriched protein produced modest but significant increases in lean mass metrics in adults ≥50 y in an RCT.

PubMed ID: 32928579

Whey/leucine/vitamin D supplement helped sarcopenic elders meet protein targets and improved function—supports lean mass maintenance.

PubMed ID: 32486007

Protein supplementation matched for leucine produced increases in lean mass during training—supports lean mass maintenance with adequate EAAs.

PubMed ID: 32230954

L-leucine in institutionalized older adults helped maintain muscle mass vs decline in placebo—direct evidence for maintenance.

PubMed ID: 31487819

Elderly resistance training with protein increased lean mass—supports maintenance/gains in lean mass with adequate EAAs/protein.

PubMed ID: 33369879

EAA supplementation maintained whole‑body protein synthesis during HIIT and supported regional lean mass — strong support.

PubMed ID: 11104589

Alanyl‑glutamine improved nitrogen balance in TPN patients, supporting lean mass retention during catabolic stress.

PubMed ID: 9249084

Clear randomized evidence that postoperative amino-acid infusion improved nitrogen balance and hastened restoration of serum proteins—supports maintenance/restoration of lean mass.

PubMed ID: 10345151

Multi-ingredient supplement preserved fat‑free mass during a 4‑week diet/exercise program—supports lean-mass maintenance though attribution to EAAs alone is uncertain.

PubMed ID: 7937272

Arginine‑containing enteral nutrition improved nitrogen balance in major trauma patients — supports retention/repletion of lean body mass in catabolic states.

PubMed ID: 27925141

Canine trial with higher‑quality protein/bioactives tended to reduce lean mass loss vs control — supportive (animal, multi‑ingredient).

PubMed ID: 31021358

EAA‑based supplement increased appendicular lean mass and strength in older adults — strong evidence for lean mass maintenance/augmentation.

PubMed ID: 1377838

Improved nitrogen balance in patients receiving arginine‑containing enteral nutrition supports preservation of lean body mass in catabolic states (multi‑nutrient).

PubMed ID: 8551652

Oral arginine improved nitrogen balance and IGF‑I in elderly — strong evidence for lean mass preservation/anabolism.

PubMed ID: 8857857

Immune-enhancing formula including arginine/glutamine reduced infections and stays—clinical improvement often associated with preserved nutrition and lean mass (combined formula).

PubMed ID: 9295822

Perioperative arginine immunonutrition reduced complications and improved nutritional status, consistent with maintaining lean mass after surgery.

PubMed ID: 10850936

Strong randomized evidence that HMB/glutamine/arginine markedly increased lean body mass in HIV wasting (large effect vs placebo).

PubMed ID: 11975938

HMB/Arg/Gln increased fat‑free mass and body mass vs control in cancer cachexia — strong evidence for lean mass maintenance/gain in this setting.

PubMed ID: 12662006

Arginine‑supplemented TB patients gained weight—likely including lean components in recovery from disease, though lean mass was not specifically quantified.

PubMed ID: 15105032

Elderly women experienced increased whole‑body protein synthesis and limb circumference—strong evidence for lean mass maintenance/gain with amino‑acid/HMB supplementation.

PubMed ID: 15802904

Arginine‑enhanced postoperative formula increased protein measures, suggesting support for lean mass retention (modest clinical effect).

PubMed ID: 15851366

Enteral arginine‑containing immunonutrition improved protein markers (prealbumin/transferrin), supportive of lean mass maintenance during surgical recovery.

PubMed ID: 15681102

Perioperative arginine-containing nutrition increased collagen deposition and reduced complications—evidence of preserving/encouraging tissue protein in a catabolic setting (human, multi-component).

PubMed ID: 17215743

HMB (±Arg/Glut) produced better nitrogen balance vs placebo in injured patients—strong signal for preservation of lean mass.

PubMed ID: 19164608

Demonstrated small lean-mass gains and increased protein turnover over 12 months in elderly receiving HMB/arginine/lysine — relevant to maintaining or increasing lean mass.

PubMed ID: 19536417

Whey + EAAs increased lean mass in frail elderly—strong direct evidence for maintaining or restoring lean mass.

PubMed ID: 20881073

Perioperative arginine‑enriched nutrition in malnourished cancer patients improved survival and recurrence‑free survival—consistent with preserved/rescued nutritional/lean mass status.

PubMed ID: 21807930

HMB+arginine+lysine increased fat-free mass in older adults—supports preservation/maintenance of lean mass (human RCT).

PubMed ID: 23849811

Immunonutrition preserved weight and functional status during radiochemotherapy—evidence for lean mass/functional maintenance under catabolic stress.

PubMed ID: 23661523

Postoperative arginine formula increased fat‑free mass and improved protein markers—direct evidence of lean‑mass maintenance/gain.

PubMed ID: 24867069

EAA/HMB formula produced improved healing in malnourished/poorly perfused subgroups—EAA/HMB combinations are protein‑sparing and support lean mass during catabolic stress.

PubMed ID: 29672184

HMB+Arg+Gln increased total lean mass in older adults — strong evidence for lean mass preservation/gains.

PubMed ID: 38613322

Perioperative arginine-enriched immunonutrition reduced postoperative loss of weight and MUAC versus preop-only supplementation (preserved lean indicators).

PubMed ID: 19699838

Demonstrated that moderate protein intake stimulates MPS, a key mechanism to maintain lean mass in adults/elderly.

PubMed ID: 33693735

Animal proteins produced larger NB/PS than plant proteins; EAA content correlated with anabolic efficiency, supporting lean‑mass maintenance.

PubMed ID: 32129194

Alpha-keto-essential-amino-acid therapy improved clinical renal markers; such therapies are used to preserve nutritional status and lean mass in CKD.

PubMed ID: 8941534

HMB supplementation preserved/increased fat-free mass in training studies (strong support for lean-mass maintenance/gain).

PubMed ID: 11803607

LPD + rHuEPO + ketoacids group had increased serum albumin and body mass vs diet alone—evidence of improved nutritional status and lean-mass maintenance in CKD context.

PubMed ID: 14506079

Shows exercise increases MPS and counters age-related decline—important for preserving lean mass with adequate protein/EAA intake.

PubMed ID: 16125527

In elderly, GH±testosterone raised protein synthesis/leucine flux — mechanistic evidence for maintaining or increasing lean mass with anabolic stimuli.

PubMed ID: 16627891

Early IV amino acids increased protein incorporation in preterm infants — supports accrual/maintenance of lean tissue.

PubMed ID: 20975109

Whey+leucine increased lean body mass over 8 weeks vs placebo—direct clinical evidence that amino-acid/protein supplementation can increase/preserve lean mass.

PubMed ID: 21623468

Exercise + protein intervention produced a small gain in lower-limb muscle mass and improved function in older adults, supporting lean-mass maintenance/augmentation.

PubMed ID: 21367943

Whey induced greater muscle protein synthesis in older men — relevant to maintaining lean mass with aging.

PubMed ID: 23883636

In elderly, leucine-rich EAA + exercise improved appendicular muscle mass—direct evidence for preserving/adding lean mass.

PubMed ID: 24015719

Whey (high‑leucine) supplementation produced larger lean‑mass gains vs soy/carbohydrate, supporting maintenance/augmentation of lean mass.

PubMed ID: 25646324

Randomized trial: whey/leucine/Vit D supplement preserved appendicular muscle mass during intentional weight loss vs control.

PubMed ID: 25444576

Soluble milk proteins with training increased fat‑free mass and appendicular mass in older men.

PubMed ID: 26170041

Leucine-enriched whey modestly increased appendicular muscle mass in sarcopenic elderly—supports lean mass maintenance.

PubMed ID: 26308291

Leucine-enriched whey increased MPS in older men, a mechanism to preserve/augment lean mass.

PubMed ID: 25926725

Strength and functional gains with leucine+training suggest maintenance/improvement of muscle mass/function.

PubMed ID: 26008820

EAA‑rich fast‑digesting milk protein increased myofibrillar and mitochondrial protein synthesis in elderly—supports maintenance of lean mass.

PubMed ID: 27075909

Supplement prevented weight loss and improved function in frail elderly — consistent with preserving or increasing lean mass in this group.

PubMed ID: 27440260

Higher dose wheat hydrolysate restored MyoPS to levels of casein/whey—demonstrates EAA dose/quality can preserve lean mass.

PubMed ID: 28285641

EAA-only formulation increased net protein gain in older adults and COPD patients, supporting preservation/restoration of lean mass.

PubMed ID: 28132725

In sarcopenic older adults, leucine‑enriched protein + vitamin D produced gains in appendicular muscle mass in responders — supports maintenance/improvement of lean mass.

PubMed ID: 30273819

Leucine‑rich EAA supplement + resistance training increased skeletal muscle mass index in post‑stroke patients.

PubMed ID: 38735574

IAAO study directly quantifying lysine requirements in older adults—highly relevant to ensuring adequate EAA intake in aging.

PubMed ID: 39203745

Observationally, low methionine (an essential AA) associated with higher short-term mortality and functional decline in malnourished hospitalized adults—links EAAs to aging-relevant outcomes.

PubMed ID: 36379387

Soy protein within a low-protein/ketoanalog regimen slowed eGFR decline and preserved lean mass over 12 months in older CKD patients—clinical aging-relevant outcomes.

PubMed ID: 35286282

CEAA reduced early postoperative muscle loss after fracture, which is important to preserve function in older patients during recovery.

PubMed ID: 35512762

In sarcopenic older adults, EAA supplementation plus resistance exercise produced greater skeletal muscle mass gains — directly relevant to healthy aging and sarcopenia prevention.

PubMed ID: 33475727

EAA formula improved walking distance, strength and reduced fat in older adults with low function—supports preservation of function with aging.

PubMed ID: 34191423

24‑week RCT in older adults: EAA supplementation with exercise improved muscle mass, balance and physical QoL—direct functional aging benefit.

PubMed ID: 29750251

Older adults: EAA + exercise improved strength and stimulated MPS, outcomes relevant to healthy aging and functional preservation.

PubMed ID: 29948444

Ketoanalogue (EAA derivative) + low protein diet in CKD preserved muscle body mass and improved metabolic markers over 14 months.

PubMed ID: 29667153

EAAs during rehab improved walking recovery after hip fracture, a clinically relevant outcome for older adults' functional aging.

PubMed ID: 30089292

In older sarcopenic men EAAs produced muscle gain and fat loss—outcomes aligned with healthier body composition in aging.

PubMed ID: 26216195

Whey protein + rehab after hip fracture (an older/clinical population) improved strength and function, relevant to preserving independence with age.

PubMed ID: 22879453

Liquid protein-energy supplement containing EAAs slowed functional decline in frail older adults over 12 weeks.

PubMed ID: 23193843

Oral EAA for 12 weeks improved lean mass, strength, activity and QoL in severely ill COPD outpatients—relevant to healthy aging/function.

PubMed ID: 20934757

Reduced infections in elderly rehab patients suggests improved resilience, relevant to healthy aging.

PubMed ID: 22142410

Sarcopenic elderly showed increases in leg mass, walking speed and strength with exercise + EAA — relevant to healthy functional aging.

PubMed ID: 21636183

8-week EAA supplementation in institutionalized elderly improved nutrition, mood and grip strength — supportive for aging outcomes.

PubMed ID: 20540639

Keto‑acid (EAA equivalent) supplementation in peritoneal dialysis improved plasma E/NEAA ratio and nutritional balance over 12 months.

PubMed ID: 20499791

EAA supplementation in elderly COPD patients increased FFM, activity, oxygenation and cognition—strong aging‑relevant benefits.

PubMed ID: 19802806

Very‑low‑protein diet plus EAAs/ketoanalogs reduced proteinuria and AGEs—markers relevant to long‑term organ aging.

PubMed ID: 19799201

In predialysis CKD patients EAAs/ketoacids improved nutrition and slowed GFR decline—clinically relevant for aging/frailty mitigation.

PubMed ID: 18514630

6–18 month EAA supplementation in elderly with sarcopenia increased whole-body lean mass and improved insulin/IGF-1/TNF‑α balance — strongly relevant to healthy aging.

PubMed ID: 18483167

Preservation of muscle area and strength during disuse is relevant to sarcopenia/healthy aging.

PubMed ID: 15060873

Keto‑analog EAAs with very low‑protein diet preserved GFR and protein status in CKD over 9 months — relevant to age‑related renal/nutritional preservation.

PubMed ID: 9840314

Ketoacid-aminoacid supplementation slowed GFR decline in advanced renal failure—directly relevant to preserving organ function with aging/disease.

PubMed ID: 36720768

EAA supplement in low‑functioning older adults gave proteomic changes and larger 6MW gains vs whey—supports functional aging.

PubMed ID: 28635634

EAA improved albumin, Hb and reduced infections in elderly hip‑fracture patients—clinically relevant to older adults.

PubMed ID: 24257722

Identified a practical EAA/protein dose (20 g whey) that maximally stimulates MPS—actionable for older adults to maintain muscle.

PubMed ID: 17462550

Ketoanalogue‑supplemented very‑low‑protein diet improved metabolic parameters and reduced dialysis initiation in CKD — clinically meaningful metabolic/aging relevance in that population.

PubMed ID: 41228401

Directly relevant: older men, protein/EAA blends produced effective EAA availability and stimulated myofibrillar MPS — supports anabolic response in aging.

PubMed ID: 38728455

Leucine‑enriched EAAs in older knee OA patients increased muscle density and improved QoL over 8 weeks (direct benefit in older adults).

PubMed ID: 39770886

Leucine‑enriched EAA supplement in post‑stroke rehabilitation preserved BMI and bone mass and trended to improved function—relevant to aging-related sarcopenia recovery.

PubMed ID: 39245679

Low BCAAs (leucine) predicted doubled 180‑day mortality in frail/malnourished inpatients, implying relevance to older adults' outcomes.

PubMed ID: 36437767

Leucine‑enriched whey + resistance training improved muscle mass/strength and helped preserve gains—relevant to preserving function with aging.

PubMed ID: 36364828

Improved physical performance and prevented lean mass decline in sarcopenic older adults (multi‑nutrient including leucine).

PubMed ID: 33588378

In older men, combining resistance exercise with presleep protein (EAA source) increased overnight connective tissue muscle protein synthesis — supports preservation of muscle with aging.

PubMed ID: 34836020

HMB-enriched nutrition improved BCAA/Fischer ratio in malnourished cirrhosis and trended toward less minimal hepatic encephalopathy—nutritional rehabilitation relevant to aging/frailty.

PubMed ID: 34520104

Leucine-enriched whey in older adults improved LDL and insulin resistance—clinically relevant metabolic changes that support healthy aging.

PubMed ID: 32162241

Six‑month leucine‑enriched whey product was safe in sarcopenic older adults and improved vitamin D/PTH profile.

PubMed ID: 32758058

Small RCT of resveratrol+leucine improved insulin resistance in prediabetics—metabolic benefits relevant to healthy aging.

PubMed ID: 33379181

Leucine‑enriched whey + vitamin D in older adults preserved/increased lean mass and improved insulin markers—direct evidence for aging-related muscle maintenance.

PubMed ID: 32570811

Leucine‑enriched protein drink for ≥50s increased measures of lean mass, relevant to sarcopenia prevention.

PubMed ID: 32928579

Whey/leucine/vitamin D supplement helped sarcopenic elders meet protein needs and improved gait speed—practical aging benefit.

PubMed ID: 32486007

Leucine-matched soy vs whey both increased lean mass and strength in training older adults—supports EAA adequacy for muscle in aging.

PubMed ID: 32230954

Leucine in institutionalized elderly maintained muscle mass and improved gait/respiratory measures—supports healthy aging (functional outcomes).

PubMed ID: 31487819

Resistance training with protein in elderly increased lean mass/strength irrespective of higher-leucine product—supports protein/EAA value for aging.

PubMed ID: 31049877

Attenuation of IL-6 rise in sarcopenic older adults and part of a targeted intervention for age-related muscle loss.

PubMed ID: 30273819

EAA (leucine‑enriched) supplement + resistance training improved muscle mass, strength and function in post‑stroke older patients (sarcopenia relevance).

PubMed ID: 28132725

Leucine‑enriched whey + vitamin D improved muscle mass in sarcopenic older adults (maintaining muscle is central to healthy aging).

PubMed ID: 28552878

In frail elderly, an MCT + L‑leucine‑rich amino acid + vitamin D supplement improved cognitive scores over 3 months — suggests a healthy‑aging benefit though multiple components confound attribution to EAAs alone.

PubMed ID: 28285641

EAA-only mixture stimulated net protein anabolism in healthy older adults, offering mechanistic support for preserving muscle and function with aging.

PubMed ID: 27440260

Shows protein (EAA) dose and quality differences for stimulating MPS in older men—relevant to strategies for healthy aging.

PubMed ID: 27075909

Functional and strength improvements in frail elderly (weight, walking speed, grip) are consistent with supporting healthy aging.

PubMed ID: 26008820

In elderly men, EAA‑rich milk protein increased myosin and mitochondrial protein synthesis—mechanistic support for healthy aging muscle maintenance.

PubMed ID: 25926725

Leucine combined with resistance training improved mobility and functional tests in older adults, supporting maintenance of function with age.

PubMed ID: 26308291

Increased MPS in older men supports preserving muscle mass with aging.

PubMed ID: 26170041

Leucine-enriched supplement increased muscle mass and function in older sarcopenic adults (aging benefit).

PubMed ID: 25444576

Leucine‑rich soluble milk proteins plus training increased muscle mass and delayed fatigue in older men.

PubMed ID: 25646324

Supplement preserved appendicular muscle mass in obese older adults during weight loss, supporting maintenance of function with aging.

PubMed ID: 24015719

Whey (high‑leucine) supplementation during training increased lean mass in adults—supports maintenance of function with aging.

PubMed ID: 23883636

Elderly women: leucine-rich EAA added to exercise improved appendicular muscle mass and strength—relevant to sarcopenia prevention.

PubMed ID: 21367943

Older men had greater muscle protein synthetic response to a leucine-rich protein (helps counteract age-related anabolic resistance).

PubMed ID: 21623468

Older participants experienced functional improvements (walking speed, chair stand) with exercise + dairy/protein, supporting healthy aging outcomes.

PubMed ID: 16125527

In elderly subjects GH±testosterone increased whole-body protein synthesis and leucine flux, indicating anabolic effects potentially countering sarcopenia.

PubMed ID: 14506079

Direct data showing age-related decline in muscle protein synthesis and exercise reverses some loss; relevant to preserving function with EAAs.

PubMed ID: 8941534

HMB decreased proteolysis and preserved/increased fat-free mass—mechanistically relevant to sarcopenia prevention in aging.

PubMed ID: 37447197

Pork/eggs in mixed meals produced larger postprandial EAA availability than plant foods in both young and older adults (improves EAA delivery in aging).

PubMed ID: 33693735

Animal protein ounce‑equivalents produced greater whole‑body net protein balance and synthesis than plant equivalents—relevant to maintaining anabolic capacity with age.

PubMed ID: 19699838

Demonstrates that moderate protein (and thus EAAs) stimulates muscle protein synthesis in older adults.

PubMed ID: 37049398

Citrulline+glutathione improved endothelial function and reduced stress BP reactivity in postmenopausal women (vascular health relevant to healthy aging).

PubMed ID: 36297065

Arginine- or BCAA-enriched biscuits improved postprandial glucose, raised GLP-1 and satiety—metabolic effects relevant to healthy aging.

PubMed ID: 36501014

L-arginine+vitamin C restored arginine levels and improved exercise capacity, endothelial function and fatigue in long COVID—supports functional resilience.

PubMed ID: 29901417

L‑arginine (1 g) with exercise raised SIRT6 and improved glucose/BMI — SIRT6 is a longevity/metabolism marker.

PubMed ID: 29672184

HMB+Arg+Gln increased total lean mass and improved function in older adults, supporting healthier aging phenotype.

PubMed ID: 29420997

L‑carnosine reduced AGEs and inflammation in T2D — AGE lowering and anti‑inflammatory effects align with healthy‑aging mechanisms.

PubMed ID: 27088214

Geriatric dogs fed diet higher in amino‑acid–rich proteins showed improved kidney biomarkers—translationally suggests aa benefit in aging, but species difference limits strength.

PubMed ID: 26306566

6‑month HMB+glutamine+arginine improved endothelial function (FMD) in older adults — cardiovascular aging marker improved by amino‑acid containing supplement.

PubMed ID: 23734218

Higher circulating methylated amino acids (e.g., ADMA) associated with faster CAD progression—relevant to amino-acid–related cardiovascular aging biology.

PubMed ID: 22553931

18‑month L-arginine increased regression to normal glucose tolerance and later reduced diabetes incidence—metabolic aging relevance.

PubMed ID: 21807930

Older adults given HMB+arginine+lysine gained lean mass—relevant to sarcopenia/healthy aging (human RCT).

PubMed ID: 20424555

High‑dose oral L‑arginine (12 g/day) lowered ambulatory blood pressure in mild hypertension—BP reduction supports cardiovascular healthy‑aging.

PubMed ID: 20865676

L‑arginine or citrulline improved a validated endothelial function index in heart‑failure patients—cardiovascular endothelial benefits relevant to aging.

PubMed ID: 19536417

Direct study in frail/undernourished elderly: EAAs/whey increased IGF‑I, raised lean mass and improved ADL—strong, clinically relevant support for healthy aging.

PubMed ID: 19164608

Elderly given HMB+arginine+lysine gained small lean mass and increased protein turnover over 12 months — relevant to sarcopenia prevention/healthy aging.

PubMed ID: 19592054

Six months oral L‑arginine improved ADMA, insulin sensitivity and adiponectin—factors linked to vascular/metabolic aging.

PubMed ID: 18820852

36‑month low‑protein + keto‑amino acid trial produced long‑term favorable metabolic improvements (ADMA, BMI) that could relate to healthy‑aging biology.

PubMed ID: 16140428

Oral L-arginine improved endothelial function (FMD) and reduced LDL susceptibility to oxidation in stable CAD patients—mechanistic cardiovascular aging relevance.

PubMed ID: 15105032

Elderly women showed improved functional time, strength and ~20% higher whole‑body protein synthesis—outcomes relevant to healthy aging.

PubMed ID: 12192323

Older adults given arginine/HMB/glutamine showed increased collagen deposition in implanted wound models, indicating anabolic/tissue-repair benefits relevant to healthy aging.

PubMed ID: 10850936

Increased lean mass/weight in wasting patients suggests anabolism that could help maintain function with aging, though study population differs.

PubMed ID: 9799202

IV L-arginine acutely normalized endothelial function in hypercholesterolemic subjects — endothelial health relevant to healthy aging.

PubMed ID: 8958162

Three months oral L-arginine reduced urinary malondialdehyde (oxidative stress marker) in diabetics — plausible aging-related benefit.

PubMed ID: 8342121

In elderly, arginine increased wound collagen/protein and IGF‑1—tissue repair and anabolic signaling that support aging resilience.

PubMed ID: 31021358

EAA supplement improved lean mass, strength and power in older adults — outcomes relevant to healthy aging and functional independence.

PubMed ID: 27925141

Functional foods in geriatric dogs increased GFR and serum protein and lessened muscle loss trend — supports aging‑related physiology (animal, multi‑ingredient).

PubMed ID: 38867083

Diet rich in one‑carbon nutrients including methionine increased global DNA methylation — mechanistic support for longevity/healthy aging pathways.

PubMed ID: 8028755

Arginine‑lysine preparation improved BMD and reduced pain in elderly — direct geriatric benefit.

PubMed ID: 38892621

EAA ± resistance exercise improved lean mass and favorable myokine/inflammation changes over 4 weeks—relevant to healthy aging.

PubMed ID: 32230954

Leucine helped maintain muscle mass in institutionalized elders—evidence for preservation/growth in at-risk populations.

PubMed ID: 31487819

Elderly training with protein increased lean mass regardless of higher-leucine product—protein/EAA sufficiency supports growth.

PubMed ID: 31278117

Preserved/increased skeletal muscle mass observed clinically with whey+leucine+vitamin D during rehabilitation.

PubMed ID: 30273819

Leucine‑enriched EAA supplement + training increased skeletal muscle mass index and handgrip strength versus control in post‑stroke patients.

PubMed ID: 28132725

Leucine‑enriched whey + vitamin D increased appendicular muscle mass in sarcopenic older adults (in those with adequate baseline status), supporting muscle growth in that population.

PubMed ID: 28285641

Strong direct evidence: EAA-only mixture (with extra leucine) substantially increased whole-body net protein gain relative to mixtures containing nonessential AAs.

PubMed ID: 27440260

Demonstrated that larger doses of a lower‑quality protein (wheat hydrolysate) restore MPS similar to casein/whey—EAA dose/quality important for muscle growth.

PubMed ID: 27075909

Clinical increases in strength and weight in frail elderly indicate anabolic/growth effects in that population.

PubMed ID: 26008820

EAA‑rich fast‑digesting milk protein robustly increased myofibrillar and mitochondrial protein synthesis—direct mechanistic support for muscle growth.

PubMed ID: 25926725

Leucine with resistance training yielded moderate functional and strength gains; muscle hypertrophy not robustly measured but plausible.

PubMed ID: 26308291

Leucine-enriched whey increased muscle protein synthesis in older men—direct evidence for muscle growth potential.

PubMed ID: 25444576

Soluble milk proteins with training increased appendicular/fat‑free mass in older men.

PubMed ID: 25646324

Supplement preserved/raised appendicular muscle mass during weight loss in older obese adults.

PubMed ID: 24015719

Daily whey (high‑leucine) during training yielded larger lean‑mass gains than soy or carbohydrate (≈+1 kg difference), robust support for muscle growth.

PubMed ID: 24284442

High leucine added to a low‑protein beverage after resistance exercise stimulated myofibrillar protein synthesis nearly as well as 25 g protein—mechanistic support for hypertrophy.

PubMed ID: 23883636

Elderly women: leucine-rich EAA + exercise increased appendicular skeletal muscle mass versus exercise alone.

PubMed ID: 21367943

Whey (higher leucine) induced greater and faster postprandial muscle protein synthesis than casein in older men — supports hypertrophic potential.

PubMed ID: 20975109

Randomized 8‑week whey+leucine supplementation increased lean body mass and upper‑body strength—direct clinical evidence for muscle growth with amino acid/protein supplementation.

PubMed ID: 19687279

Valine (and Ile) restored body-weight gain in amino-acid-restricted chicks (direct growth effect, animal).

PubMed ID: 19359510

Valine supplementation increased average daily gain and N retention in piglets (direct growth effect, animal).

PubMed ID: 16125527

Hormone-induced increases in leucine flux and whole-body protein synthesis in elderly imply potential for muscle growth when anabolic signals supplied.

PubMed ID: 14506079

Demonstrates age-related MPS decline and exercise-induced increases; EAAs are a key driver of MPS and hypertrophy potential.

PubMed ID: 8941534

HMB supplementation increased fat-free mass across weeks of training—strong, relevant evidence derived from a leucine metabolite.

PubMed ID: 37447197

Pork/eggs increased postprandial EAA availability over plant foods—improved EAA delivery conducive to muscle growth when combined with training.

PubMed ID: 33693735

Animal proteins had superior anabolic responses (NB/PS) vs plant proteins, linked to higher EAA content—supports muscle‑building efficacy of EAA‑rich sources.

PubMed ID: 19699838

Clear human evidence that a 30 g high-quality protein meal maximally stimulates muscle protein synthesis — strong biological basis for growth.

PubMed ID: 33369879

EAA supplementation with HIIT helped maintain protein synthesis and modestly supported thigh lean mass gains.

PubMed ID: 31021358

EAA‑based multi‑ingredient supplement increased appendicular lean mass vs placebo in older adults — direct muscle growth signal.

PubMed ID: 8551652

Oral arginine increased IGF‑I and produced a positive nitrogen balance in elderly — strong anabolic signal supportive of muscle growth.

PubMed ID: 7735336

Arginine markedly increased GH response to GHRH — hormonal driver of muscle growth.

PubMed ID: 10850936

HMB/glutamine/arginine produced large, clinically meaningful increases in lean body mass in HIV wasting (randomized double‑blind).

PubMed ID: 11975938

Multi‑nutrient HMB/arginine/glutamine supplement increased fat‑free mass in cancer patients in a randomized trial — direct evidence of anabolic effect in that population.

PubMed ID: 15105032

HMB+arginine+lysine increased protein synthesis and limb circumference alongside strength gains, supporting muscle growth/maintenance.

PubMed ID: 17215743

HMB regimens (with/without Arg/Gln) improved nitrogen balance—supportive of net anabolism and muscle mass maintenance/growth in injured patients.

PubMed ID: 19531710

Large broiler feed trial showed increased myofiber diameter and protein:DNA ratio with extra arginine—strong evidence of muscle anabolism in animals (limited human translation).

PubMed ID: 19164608

Year-long HMB+arginine+lysine produced a small but significant lean-mass increase in elderly — direct evidence supporting muscle accretion.

PubMed ID: 19536417

Whey + EAAs increased lean body mass and IGF‑I in undernourished elderly—direct evidence supportive of muscle accretion.

PubMed ID: 21807930

HMB+arginine+lysine increased fat-free mass in older adults (human RCT showing clear muscle mass gain).

PubMed ID: 23661523

Higher‑dose arginine-containing formula increased fat‑free mass postoperatively—evidence for anabolic/lean mass gains in clinical setting.

PubMed ID: 24867069

EAA/HMB formula improved tissue healing—HMB + EAAs are known to help preserve/grow lean tissue in catabolic/compromised patients (trial showed clinically meaningful healing subgroup effects).

PubMed ID: 29672184

HMB+Arg+Gln for 6 months increased total lean mass (multiple measurement methods) in older adults — direct evidence for muscle accretion.

PubMed ID: 38215886

Whey/protein increased MyoPS vs fasting; ketone co‑ingestion prolonged aminoacidemia—supports anabolic responses.

PubMed ID: 38892621

EAA supplementation combined with resistance exercise produced the largest lean‑mass gain vs other conditions.

PubMed ID: 36856692

EAA supplementation perioperatively increased rectus femoris area at 2 years—direct evidence for long-term muscle hypertrophy in a clinical setting.

PubMed ID: 35286282

CEAA reduced early FFM loss after fracture, supporting preservation/gradual regain of muscle mass in a clinical recovery context.

PubMed ID: 35512762

Randomized trial in sarcopenic older adults: EAA + tea catechins with resistance exercise produced significantly greater skeletal muscle mass increases vs exercise alone.

PubMed ID: 34191423

Long RCT: EAA supplementation with resistance exercise increased skeletal muscle mass index and related functional gains in older adults.

PubMed ID: 33317565

Peanut‑protein with resistance training increased vastus lateralis thickness and mid‑thigh mCSA—practical evidence of hypertrophy with protein/EAA intake.

PubMed ID: 32498426

Prolonged‑release EAA formulation provided sustained EAA exposure and lowered AA breakdown — favorable for muscle protein accretion.

PubMed ID: 29750251

EAA supplementation increased muscle protein synthesis (though no total lean mass gain over 24 weeks), indicating anabolic stimulus for growth.

PubMed ID: 30089292

EAA supplementation in older sarcopenic men produced clear increases in appendicular skeletal muscle index (ASM/H2) over weeks—direct evidence of muscle growth.

PubMed ID: 26864356

The multicomponent intervention (whey + EAAs + vitamin D) produced ~1.7 kg gain in fat‑free mass in older sarcopenic adults; EAAs contributed but were not isolated.

PubMed ID: 26245916

Digestible lysine increased early growth efficiency and loin area in growing boars — direct animal evidence for muscle accretion with an EAA.

PubMed ID: 25644344

Whey preserved postprandial MPS better than soy/carbs during restriction—supports muscle growth/retention.

PubMed ID: 25431770

EAA supplementation in stroke patients increased muscle amino‑acid uptake and shifted balance toward anabolism (supports muscle growth).

PubMed ID: 23930712

Dietary lysine influenced growth performance and muscle protein concentration in juvenile turbot — cross‑species evidence of lysine's role in muscle growth.

PubMed ID: 23881680

In pigs, lysine (crystalline or from soybean) supported linear increases in growth and lean muscle measures as dietary lysine rose — strong animal evidence for lysine‑driven muscle growth.

PubMed ID: 24355438

Pulse protein feeding increased systemic EAA AUC in older patients, supporting anabolic stimuli for muscle accretion.

PubMed ID: 22338070

Controlled metabolic study in older men: higher whey (EAA‑rich) doses produced greater amino acid availability and postprandial muscle protein accretion.

PubMed ID: 23193843

12-week EAA supplementation increased fat-free mass in COPD outpatients, consistent with muscle growth/preservation.

PubMed ID: 22142410

Exercise + EAA in sarcopenic women increased leg muscle mass compared with controls in an RCT.

PubMed ID: 21636183

EAA supplementation improved nutritional markers and grip strength in elderly, supporting muscle mass/quality improvements.

PubMed ID: 20928906

EAAs attenuated bed‑rest muscle loss especially when combined with resistance exercise, supporting net muscle mass retention/growth potential.

PubMed ID: 20499791

EAAs in elderly COPD patients produced substantial increases in fat‑free mass and body weight.

PubMed ID: 18514630

Long-term EAA supplementation increased whole-body lean mass in sarcopenic elderly — strong evidence for muscle growth in that population.

PubMed ID: 18835539

EAA increased body weight (mostly anabolism) and improved exercise metrics in muscle-wasted CHF patients — consistent with anabolic/muscle growth effects.

PubMed ID: 18483167

EAA timing plus resistance markedly reduced midthigh muscle area loss (AA −11% vs RT −3%/AART −4%) during bed rest, supporting muscle-mass preservation/growth potential.

PubMed ID: 16472979

EAAs consumed around resistance exercise produced an anabolic hormonal profile and are directly associated with supporting muscle protein accretion.

PubMed ID: 16456674

CHO+EAA after resistance exercise resulted in the largest increases in muscle-fiber size vs placebo and favorable anabolic markers—strong direct evidence for muscle growth.

PubMed ID: 9565240

Clear animal evidence that adequate lysine and TSAA:Lys ratios increased growth (ADG) and efficiency.

PubMed ID: 1819034

EAA supplementation on low protein diet produced clinical/biochemical improvements likely preserving/building lean tissue in chronic disease.

PubMed ID: 24824360

Defines tryptophan intake required for protein accretion in infants—directly relevant to growth.

PubMed ID: 37716611

Algal proteins raised resting and exercise-stimulated MyoPS, a direct mechanistic signal for muscle accretion.

PubMed ID: 24257722

Established ~20 g whey as a dose that maximally stimulates MPS in trained men—important translational dosing info for muscle hypertrophy.

PubMed ID: 31152658

Dairy proteins that raised post-exercise plasma EAAs produced robust increases in myofibrillar protein synthesis — strong mechanistic support for muscle anabolism.

PubMed ID: 41228401

Direct MPS (myofibrillar protein synthesis) measurements in older men after EAA/protein blends — solid mechanistic support for muscle growth.

PubMed ID: 38315260

Direct human trial showing adequate protein dose (despite source) stimulates myofibrillar MPS comparable to milk—strong evidence for supporting muscle growth.

PubMed ID: 39683384

Intervention increased plasma EAAs and resulted in gains in muscle mass over 12 weeks.

PubMed ID: 38257103

Leucine supplementation led to significant increases in ASMM and FFM in older men with GI cancer.

PubMed ID: 39739679

Strength and total load gains with dileucine imply hypertrophic/adaptive muscle growth.

PubMed ID: 38728455

Increased muscle density with LEAA supplementation in older adults indicates localized muscle composition/growth benefit.

PubMed ID: 36437767

Leucine‑enriched whey combined with resistance training produced meaningful increases in muscle mass and preserved gains after detraining (clinical RCT evidence).

PubMed ID: 36364828

Multi‑ingredient (leucine+) supplement improved functional outcomes in sarcopenic older adults; supports potential for lean mass/quality improvements though multi‑nutrient limits attribution.

PubMed ID: 33588378

Presleep casein with evening resistance exercise increased overnight muscle protein synthesis and dietary AA incorporation — supportive mechanistic evidence for muscle hypertrophy over time.

PubMed ID: 33379181

Leucine-enriched whey + vitamin D with exercise increased appendicular and total lean mass vs isocaloric control—direct evidence for muscle growth.

PubMed ID: 32570811

12‑week leucine‑enriched protein increased lean body mass measures in older adults (clinical evidence of growth/maintenance).

PubMed ID: 32928579

Whey/leucine/vit D supplement helped sarcopenic elders meet protein needs and improved gait speed; aided muscle mass maintenance/increase.

PubMed ID: 32486007

Soy vs whey matched for leucine: both increased lean mass during 12 weeks of resistance training—strong EAA/leucine-associated hypertrophy evidence.

PubMed ID: 9249084

IV amino acids after surgery improved nitrogen balance and protein restoration, which supports immune competence during recovery.

PubMed ID: 34973853

IV glutamine in severe burns reduced gut permeability and organ‑injury markers, consistent with improved host defense and barrier function.

PubMed ID: 7937272

Enteral formula containing arginine reduced infections and improved nitrogen balance in major trauma patients — strong clinical immune/host‑defense benefit.

PubMed ID: 24589090

Preoperative immunonutrition containing arginine reduced postoperative infections and altered immune mediators in surgical patients.

PubMed ID: 2382229

Two weeks oral arginine increased wound collagen and T‑cell mitogenic responses in healthy volunteers — direct immune enhancement and healing evidence.

PubMed ID: 1433775

Parenteral arginine increased circulating T cell counts postoperatively (modest immunologic cell‑count effect) though proliferation was not enhanced.

PubMed ID: 1377838

Postoperative enteral arginine+RNA+omega‑3 reduced infections and restored lymphocyte mitogenesis—large clinical immune effect though formula was multi‑nutrient.

PubMed ID: 8342121

Oral arginine in elderly raised wound protein/collagen and enhanced lymphocyte mitogenic responses and IGF-1—direct immune and wound‑repair signals.

PubMed ID: 7874893

Enteral formula containing arginine/nucleotides/fish oil reduced infections and LOS in high‑risk ICU patients — strong clinical immune benefit (multi‑nutrient product).

PubMed ID: 7539633

Arginine/RNA/omega‑3 enriched enteral diet modulated postoperative cytokine responses beneficially.

PubMed ID: 8924741

Postoperative enteral diet including arginine improved immuno‑nutritional markers and clinical recovery — supports immune benefit (multi‑component).

PubMed ID: 7536138

Enteral diet supplemented with arginine (+RNA, omega‑3) improved T-lymphocyte subsets, interferon-γ and immunoglobulins postoperatively—immune markers improved though nutrients combined.

PubMed ID: 8857857

Trauma patients fed an immune-enhancing formula including arginine/glutamine had far fewer serious infections and shorter stays—strong clinical immune benefit though multi-nutrient formula.

PubMed ID: 8875537

Enteral feeding enriched with arginine (plus ω‑3/nucleotides) improved immune markers and tended to fewer infections after major surgery.

PubMed ID: 9549298

Randomized pediatric trial: oral L-arginine raised T‑cell subsets and markedly increased proportion of children free from recurrent airway infections (strong direct immune benefit).

PubMed ID: 9295822

Large multicenter trial: arginine/omega‑3/nucleotide enteral diet reduced late postoperative infectious complications and related costs—strong clinical immune endpoint for an arginine‑containing immunonutrition.

PubMed ID: 9737282

Glutamine-enriched enteral feeding markedly reduced pneumonia, bacteraemia and sepsis in trauma patients (strong clinical immune benefit).

PubMed ID: 10574478

Perioperative formula containing arginine improved immune/nutritional markers (confounded by omega-3/RNA).

PubMed ID: 10850936

Randomized trial in HIV wasting: HMB/glutamine/arginine improved immune markers (CD3/CD8) and reduced viral load.

PubMed ID: 11104591

Enteral formula containing arginine increased lymphocyte subsets and reduced postoperative infections in malnourished head-and-neck surgery patients (multinutrient formula).

PubMed ID: 10752808

Enteral feed containing arginine (with other immune nutrients) reduced infections and mortality in septic ICU patients; clinically meaningful but not attributable to arginine alone.

PubMed ID: 11688933

Critically ill patients fed arginine/fiber/antioxidant‑enriched high‑protein diet had far fewer catheter infections (large RCT); multicomponent formula.

PubMed ID: 11819790

Perioperative enteral diet containing arginine/glutamine improved neutrophil function and reduced inflammatory cytokines—direct immune markers improved.

PubMed ID: 12905875

Arginine-containing perioperative immune formula increased plasma arginine, improved gut barrier and raised IgM—supportive of immune effects (though formula had multiple components).

PubMed ID: 12428179

Pre/postoperative arginine‑enriched feeding reduced wound fistulas (improved clinical wound outcome) consistent with immune/wound‑healing support, though formula contained multiple components.

PubMed ID: 12464864

Preoperative arginine + omega‑3 improved immune measures and markedly reduced postoperative infections after colorectal cancer surgery.

PubMed ID: 12006956

Large RCT in preterm infants: arginine supplementation markedly lowered necrotizing enterocolitis incidence (strong clinical immune/gut-protection effect).

PubMed ID: 11822956

Perioperative immunonutrition including arginine reduced complications and shortened stay in malnourished cancer patients (immune-related benefit).

PubMed ID: 12924804

Immunonutrition (arginine/glutamine/omega‑3) improved serum protein/triglycerides and tended to shorten ICU/ventilator time in severely injured patients (immune/metabolic benefits).

PubMed ID: 12662006

Oral L‑arginine given with TB therapy improved sputum conversion and clinical recovery—direct evidence of enhanced host/pathogen clearance.

PubMed ID: 15851366

Enteral formula containing arginine (with glutamine/omega‑3) increased immunologic markers (CD4, Ig, lower IL‑6/TNF) after gastric cancer surgery.

PubMed ID: 16196295

Enteral formula containing arginine after GI surgery improved endotoxin-inactivation capacity and shortened stay—functional immune recovery signal (multi‑component formula).

PubMed ID: 16564254

Perioperative L‑arginine reduced IL‑6 release after CABG, indicating reduced inflammatory injury that can support immune/repair processes.

PubMed ID: 18449445

Arginine-containing enteral formula reduced postoperative infections versus control (immunonutrition effect, but multi-nutrient formula confounds attribution).

PubMed ID: 18007263

Enteral supplement including glutamine dipeptides/arginine associated with faster organ-function recovery in sepsis, suggesting improved host response (multi‑nutrient intervention).

PubMed ID: 19694342

Postoperative enteral nutrition with extra arginine reduced wound fistula rate and shortened hospital stay—implies improved surgical/immune outcomes.

PubMed ID: 19629583

Preoperative immunonutrition containing arginine+omega‑3 reduced postoperative infections and raised CD4+ counts—strong clinical immune benefit (combination product).

PubMed ID: 19842559

Arginine‑enriched enteral feeding in severely burned patients improved nutritional proteins and helped preserve CD4% vs standard feeding, supporting immune nutrition.

PubMed ID: 20881073

Perioperative arginine‑enriched nutrition improved long‑term survival and reduced recurrences in malnourished head‑and‑neck cancer patients—likely mediated by improved nutritional/immune status.

PubMed ID: 21058198

Perioperative immunonutrition including arginine (plus RNA/ω‑3) reduced postoperative infections/wound complications—consistent with improved immune outcomes (multi‑nutrient formula).

PubMed ID: 20598855

Arginine‑enriched oral supplement accelerated pressure‑ulcer healing—multinutrient formula but suggests arginine supports recovery/host response.

PubMed ID: 21813328

Large RCT of arginine-rich supplement showed a substantial TB cure-rate benefit in HIV+ subgroup (clinical immune-relevant outcome).

PubMed ID: 23849811

Immunonutrition (arginine-containing) preserved weight and functional status during chemoradiotherapy, consistent with clinical immune/nutrition support.

PubMed ID: 23812551

Arginine‑enriched postoperative enteral nutrition improved immune markers (CD4, NK, IgM/IgG) and was linked to better survival.

PubMed ID: 24274379

Immunonutrition containing arginine/blunted rises in CRP and TNF during chemoradiotherapy, indicating anti-inflammatory/immune effects.

PubMed ID: 23329787

Enteral L-arginine in very low birth weight infants significantly reduced severe NEC, a clinically important immune/gut-protection outcome.

PubMed ID: 28336107

Arginine/glutamine/omega-3 enteral nutrition reduced early postoperative deaths after gastric cancer surgery (likely via improved immune/host response).

PubMed ID: 27038614

Perioperative immunonutrition with arginine reduced postoperative CRP and shortened hospital stay (reduced inflammatory response/clinical recovery).

PubMed ID: 25237981

Essential‑AA medical food markedly lowered CRP/IL-6 in chronic low back pain, indicating anti‑inflammatory/immune modulation.

PubMed ID: 26965712

Preoperative immunonutrition containing arginine reduced postoperative infections and inflammation (direct clinical immune benefit).

PubMed ID: 29420997

L‑carnosine lowered TNF‑α in T2D, indicating an anti‑inflammatory/immunomodulatory effect (indirect immune support).

PubMed ID: 28162818

Preoperative immunonutrition (contains conditionally essential AAs) reduced complications and shortened LOS — consistent with improved perioperative immune function.

PubMed ID: 30710211

Preoperative arginine+glutamine markedly reduced infectious complications and fistula recurrence vs standard care.

PubMed ID: 31146957

Arginine+glutamine+fish oil during chemoradiation reduced grade 3–4 hematologic toxicities, indicating supportive effects on treatment tolerance/immune outcomes.

PubMed ID: 30485425

AML study shows arginine depletion impairs T cells and arginase blockade restores T‑cell function — mechanistic support for arginine in immunity.

PubMed ID: 35148750

Preoperative Arg+Gln+HMB reduced inflammatory markers (IL‑6, hs‑CRP), consistent with immunomodulatory/anti‑inflammatory effects relevant to recovery/host response.

PubMed ID: 36982151

Long-COVID RCT with L-arginine+vitamin C improved serum arginine/ADMA (NO bioavailability) with clinical symptom correlations—supports immune/repair signaling.

PubMed ID: 36804278

RCT in hospitalized COVID showed reduced inflammatory markers and large clinical improvement in respiratory support—strong immune/inflammation relevance.

PubMed ID: 39631846

Higher baseline plasma arginine predicted substantially better overall survival with immune checkpoint therapy (arginine status linked to immune treatment response).

PubMed ID: 40914430

Preoperative HMB+glutamine+arginine reduced TNF-α (anti-inflammatory signal) vs control.

PubMed ID: 22079390

Multinutrient supplement containing L‑methionine shortened healing time and reduced relapses in recurrent viral skin infections.

PubMed ID: 21766553

Randomized L‑isoleucine supplementation increased stool HBD‑3 (antimicrobial peptide) and lowered stool output — direct immune/mucosal benefit.

PubMed ID: 23123043

Leucine-rich high-protein medical food reduced serum PGE2 (pro-inflammatory mediator) in radiotherapy patients.

PubMed ID: 31504110

EAA mix (tryptophan, glutamine, leucine) preserved small‑intestinal villus height/area and barrier — supports mucosal immunity and gut‑mediated immune function.

PubMed ID: 31049877

Vitamin D + leucine-enriched whey partially attenuated IL-6 increase in sarcopenic older adults (anti-inflammatory signal).

PubMed ID: 28635634

EAA supplementation in elderly hip‑fracture patients increased albumin and reduced infections—direct immune‑related benefit.

PubMed ID: 9446004

Long‑term L‑methionine (an EAA) reduced bacterial adherence and prevented UTI reinfection in women — direct antimicrobial/host-defense effect.

PubMed ID: 9720743

Parenteral glutamine (conditionally essential AA) preserved albumin and protein C in BMT patients, consistent with immune/hepatic protection.

PubMed ID: 21566549

Methionine-containing oral nutraceutical added to wart therapy markedly increased wart clearance and reduced new warts, indicating immune/antiviral support.

PubMed ID: 15214257

Lysine‑fortified wheat increased immune indices (CD3, Ig, C3) and improved nutritional markers in a population trial.

PubMed ID: 15214256

Lysine supplementation in a cereal‑dependent population increased immune markers (CD4/CD8/C3) and hematologic indices—direct evidence of improved immune status.

PubMed ID: 17006600

RCT: L‑methionine slowed CD4 decline in HIV patients—direct clinical evidence that an essential AA affected immune outcomes.

PubMed ID: 18947029

Lysine-fortified staple flour reduced diarrheal illness in women and altered complement C3 in men — direct population-level immune benefit.

PubMed ID: 20720257

Daily lysine (1 g) reduced diarrheal and respiratory morbidity in a community RCT, consistent with immune/host defense effects.

PubMed ID: 20934757

Randomized elderly rehab patients: 8 g/day EAAs reduced institution-acquired infections substantially (absolute -30.5 pp).

PubMed ID: 22307494

RCT in brain-injured rehab patients: 2 months oral EAA (8 g/d) substantially reduced hospital-acquired infections vs placebo.

PubMed ID: 23361591

Histidine supplementation reduced inflammatory markers (TNF‑α, IL‑6) in obese women with metabolic syndrome — anti‑inflammatory/immune‑modulating human data.

PubMed ID: 24422657

Dietary threonine increased serum Ig (IgG/IgM/IgA) and IFN‑γ in weaned pigs (direct immune marker changes).

PubMed ID: 26853287

L-lysine (3 g/day) reduced circulating AGEs and improved lysozyme structure/function, indicating enhanced innate antimicrobial function.

PubMed ID: 30096200

EAA‑enriched RUTF in severely malnourished children restored plasma EAAs similar to milk RUTF, supporting nutritional recovery that underpins immune competence.

PubMed ID: 35286282

Post‑op supplementation with conditionally essential amino acids halved some complications and reduced overall complication rate, suggesting improved resilience/repair and possible immune benefit.

PubMed ID: 38985667

Tailored amino‑acid supplementation in hemodialysis patients increased IgG and C3 and improved hemoglobin/clinical nutrition markers.

PubMed ID: 31291417

Acute citrulline with exercise produced large and sustained blood‑pressure reductions across 24 h in hypertensives—meaningful metabolic/cardiovascular effect linked to arginine/NO pathway.

PubMed ID: 29901417

L‑arginine with exercise improved fasting glucose and BMI in elderly men, indicating beneficial metabolic effects.

PubMed ID: 29858688

Large supplementation trial: oral arginine (up to 30 g/d) raised arginine levels and reduced systolic BP (women), glucose (women) and free fatty acids.

PubMed ID: 29052766

Large RCT: oral L‑arginine for 18 months reduced diabetes incidence and improved 2‑h glucose and oxidative/endothelial markers — strong metabolic benefit.

PubMed ID: 29420997

L‑carnosine reduced fasting glucose, triglycerides and AGEs in T2D — clear metabolic improvements.

PubMed ID: 27817128

L‑arginine + B vitamins improved endothelial function and lowered homocysteine and systolic BP—metabolic/vascular benefits relevant to cardiometabolic health.

PubMed ID: 1819034

EAA optimization lowered BUN/creatinine and improved clinical state in renal failure—meaningful metabolic effects.

PubMed ID: 26578409

Arginyl-fructose significantly reduced OGTT glucose at 30–60 min and decreased glucose AUC in prediabetes/new T2DM.

PubMed ID: 25335675

20 g/day L‑arginine in postoperative patients produced small but consistent improvements in insulin resistance (HOMA) and adiponectin — direct metabolic benefits.

PubMed ID: 24746974

Dietary replacement with arginine‑rich lupin protein lowered LDL, total cholesterol, triglycerides and homocysteine—robust metabolic improvements.

PubMed ID: 24695897

Perioperative nutrition including amino acids increased myocardial/plasma arginine:ADMA ratio and correlated with improved myocardial glucose uptake (FDG PET)—meaningful metabolic effect.

PubMed ID: 23708056

Randomized trial: oral L‑arginine for 6 months increased insulin sensitivity in obese subjects—strong direct metabolic benefit.

PubMed ID: 27281800

SR L‑arginine reduced postprandial endothelial dysfunction in low‑arginine overweight adults — improved endothelial/metabolic post‑meal response relevant to metabolic health.

PubMed ID: 36839368

Low‑protein formulas enriched with α‑lactalbumin maintained normal growth with improved BUN and BCAA profiles—protein quality affects metabolism.

PubMed ID: 24257722

Dose‑response data showing 20 g whey maximally stimulates MPS and that higher doses increase AA oxidation—direct metabolic evidence guiding EAA/protein dosing.

PubMed ID: 17462550

Ketoanalogue‑supplemented very‑low‑protein diet produced robust improvements in urea, bicarbonate and phosphate and reduced dialysis initiation — strong metabolic benefit in CKD context.

PubMed ID: 40156624

Observational cohort: higher leucine intake modestly associated with lower TyG index (insulin-resistance marker) and an indirect reduced T2DM risk; relevant to metabolic effects though observational and small.

PubMed ID: 38315260

Showed differing plasma EAA kinetics between protein sources despite similar MPS, informing metabolic handling of EAAs.

PubMed ID: 36007871

Oral amino acids + late‑evening snack raised resting RQ and shifted substrate use toward carbohydrates and increased circulating BCAAs/Fischer ratio in cirrhosis patients — direct metabolic effect.

PubMed ID: 33369909

Multiagent trial including leucine produced modest weight loss and improved lipids/CRP—supports metabolic effects, though attribution to leucine alone is uncertain.

PubMed ID: 34959840

Observational study found valine changes correlated with cholesterol improvements during weight loss—associative metabolomics link between EAAs and metabolism.

PubMed ID: 34520104

Leucine-enriched whey improved fasting insulin and HOMA-IR and lowered LDL in older adults—direct metabolic benefits.

PubMed ID: 32758058

Resveratrol+leucine reduced HOMA‑IR and OGTT glucose/insulin AUC in prediabetic humans (clear metabolic effect).

PubMed ID: 33379181

Leucine-enriched whey + vitamin D with exercise improved fasting insulin and insulin-resistance indices—direct metabolic benefit.

PubMed ID: 28285641

Enhanced whole-body net protein anabolism reflects shifts in protein turnover/metabolic partitioning that can influence metabolic health.

PubMed ID: 24015719

Whey supplementation raised fasting leucine and improved lean mass—affects metabolic rate and substrate partitioning.

PubMed ID: 24284442

Postexercise increase in myofibrillar protein synthesis indicates anabolic metabolic effects of leucine supplementation.

PubMed ID: 22432727

Single-dose hydrolysed-casein with leucine lowered short-term postprandial glucose and markedly increased insulin — indicates an acute metabolic effect on glycemia/insulin.

PubMed ID: 21849603

Higher‑protein infant formula significantly raised circulating BCAAs and IGF‑I and increased insulin marker (C‑peptide) — direct evidence of altered metabolism from amino acid/protein intake.

PubMed ID: 16627891

Early IV amino acids changed leucine oxidation and increased protein synthesis in very low birthweight infants — demonstrates metabolic effects of amino acid administration.

PubMed ID: 11803607

Ketoacid supplementation improved albumin, leucine levels and some metabolic markers in CKD patients—relevant to protein/amino-acid metabolism in disease.

PubMed ID: 11603100

KA/EAA supplementation over 12 months improved amino‑acid profiles and markedly lowered triglycerides and slowed GFR decline — clear metabolic benefit in CKD.

PubMed ID: 32129194

Alpha-keto-essential-amino-acid therapy plus Nigella sativa improved renal function and proteinuria in CKD patients—clinically relevant metabolic improvements.

PubMed ID: 41423132

Valine/isoleucine betaines rose after wheat intake and serve as intake biomarkers; associated metabolic signals support improved glycemic responses.

PubMed ID: 30256894

Whole-grain diets increased betainized metabolites associated with improved postprandial glucose and insulin responses—metabolic relevance.

PubMed ID: 33693735

Animal proteins produced greater NB and PS than plant proteins and EAA content correlated with NB (r=0.44), indicating metabolic advantages tied to EAAs.

PubMed ID: 37161876

Citrulline+HIIT produced measurable metabolomic shifts (including increased arginine) with correlations to adiposity changes—strong metabolic signal.

PubMed ID: 36297065

Arginine/BCAA-enriched biscuits lowered postprandial glucose and changed insulin/GLP-1 responses—clear metabolic effect acutely.

PubMed ID: 36501014

L-arginine+vitamin C improved endothelial function and exercise capacity in long COVID and restored arginine levels—supporting systemic metabolic improvement.

PubMed ID: 32861603

Taurine RCT in T2DM produced multiple significant improvements in FBS, HbA1c, insulin, HOMA‑IR, lipids and AGE markers—strong, direct metabolic benefit from an amino acid.

PubMed ID: 22913215

Three months of 9 g/day L-arginine improved HOMA‑IR and lowered insulin in visceral obesity—direct metabolic benefit.

PubMed ID: 22732180

6 month L-arginine in obese subjects increased insulin sensitivity, decreased PAI-1 and raised NO—direct metabolic improvements.

PubMed ID: 22553931

18-month L-arginine improved regression to normal glucose tolerance and led to lower diabetes incidence on follow-up—strong metabolic benefit.

PubMed ID: 20555372

Four weeks of an arginine‑based supplement modestly increased gas exchange threshold and power at GET, indicating improved submaximal metabolic function.

PubMed ID: 20042191

Lower dietary Lys:Arg ratio reduced postprandial VLDL/triglycerides and fasting hsCRP—direct metabolic improvements following arginine‑rich diet.

PubMed ID: 19555809

L‑arginine enhanced simvastatin triglyceride‑lowering effect—demonstrates metabolic interaction affecting lipids.

PubMed ID: 19592054

Six months oral L‑arginine improved ADMA, insulin sensitivity and adiponectin—direct metabolic improvements in post‑CABG patients.

PubMed ID: 18820852

Keto‑amino acid + low‑protein diet over 3 years markedly reduced ADMA and proteinuria and improved metabolic parameters (direct metabolic effects).

PubMed ID: 16772327

L-arginine plus diet/exercise improved glucose profiles, fructosamine, adiponectin, cGMP and reduced endothelin-1—strong metabolic benefits.

PubMed ID: 16140428

Oral L-arginine improved endothelial function and reduced LDL oxidation—favorable metabolic/cardiovascular markers.

PubMed ID: 34382947

AXA1125 (EAA‑based metabolic modulator) produced significant reductions in liver fat and improved HOMA‑IR — strong metabolic benefit.

PubMed ID: 29696666

Leucine‑metformin‑sildenafil combination reduced liver fat (MRI‑PDFF) in a high‑ALT subgroup — meaningful metabolic improvement in humans.

PubMed ID: 38658223

2‑AAA and diet associations implicate lysine metabolism in systemic metabolic phenotype—direct metabolite–metabolism link.

PubMed ID: 38985667

Amino‑acid replacement in dialysis patients improved protein intake/PCR and hemoglobin—meaningful metabolic/nutritional effects.

PubMed ID: 39368841

Sepiapterin markedly reduced blood phenylalanine in PKU, a direct metabolic correction of an essential‑AA disorder.

PubMed ID: 32795739

Lysine‑containing nutraceutical (with zinc/vitC) improved glycaemic measures and reduced progression to diabetes — metabolic benefit (multi‑nutrient).

PubMed ID: 29895309

VHP enteral formula substantially increased protein intake and circulating amino acids — metabolic substrate improvement.

PubMed ID: 29642492

Tryptophan slowed gastric emptying and reduced early postprandial glycemia—direct metabolic effect relevant to glucose handling.

PubMed ID: 26853287

L-lysine reduced protein glycation (AGEs) and improved lysozyme function in T2DM, indicating favorable metabolic/biochemical effects.

PubMed ID: 25701333

Low‑AGE diet (with exercise) improved triglycerides/HDL and reduced serum AGEs in overweight men (metabolic benefit).

PubMed ID: 23361591

Histidine (4 g/day) for 12 weeks improved HOMA‑IR, lowered inflammatory markers and reduced fat mass in obese women — strong human metabolic benefit.

PubMed ID: 20540639

Keto‑acid supplementation improved plasma E/NEAA ratio over 12 months in PD patients, indicating improved amino‑acid metabolism.

PubMed ID: 19802806

VLP diet + EAAs/ketoanalogs substantially reduced proteinuria and serum AGEs—clear metabolic benefits in CKD patients.

PubMed ID: 19799201

EAA/ketoacid supplementation improved nutrition and slowed kidney decline—benefits to systemic metabolic status.

PubMed ID: 18514630

EAA supplementation improved insulin sensitivity (glucose, insulin, HOMA) and increased IGF‑1/decreased TNF‑α in elderly — strong metabolic benefit.

PubMed ID: 15214256

Lysine fortification improved growth and hematologic markers, indicating improved nutrient utilization/metabolic status in undernourished populations.

PubMed ID: 15060873

Ketoanalogs + very low‑protein diet preserved GFR and protein markers in CKD — meaningful metabolic/nutritional benefit.

PubMed ID: 8551652

Oral arginine in elderly increased IGF‑I and positive nitrogen balance — anabolic effects plausibly support increased strength.

PubMed ID: 41101508

Whey produced large postprandial EAA/leucine peaks (mechanistically relevant to strength) though a single 20 g dose did not increase acute postexercise MPS vs exercise alone.

PubMed ID: 38892621

RE+EAA plus resistance exercise produced the largest lean‑mass gains and strength improvements over 4 weeks.

PubMed ID: 36856692

Perioperative EAA supplementation produced large, durable increases in quadriceps strength at 2 years (direct high-quality RCT).

PubMed ID: 35512762

EAA + tea catechins with resistance exercise increased skeletal muscle mass in sarcopenic older adults — muscle mass gain often translates partially to strength though strength not the primary reported outcome.

PubMed ID: 33475727

Tailored EAA supplement RCT in low‑functioning older adults produced measurable strength gains and improved walking distance.

PubMed ID: 34191423

EAA (with catechins) plus resistance exercise increased skeletal muscle mass index and improved physical performance measures vs control.

PubMed ID: 33317565

Peanut‑protein (rich in EAAs) with resistance training increased leg muscle thickness and some strength outcomes in older adults.

PubMed ID: 29750251

Randomized trial: daily 15 g EAA + aerobic exercise increased muscle strength (older adults) vs exercise alone.

PubMed ID: 29667153

EAAs added during rehab increased walking distance vs rehab alone, implying functional strength gains in older hip‑fracture patients.

PubMed ID: 30089292

Sarcopenic obese older men taking EAAs gained appendicular muscle (ASM/H2) earlier, which likely supports greater strength.

PubMed ID: 26864356

Exercise + supplement (whey + EAAs + vitamin D) produced significant strength gains; EAAs were included but effect cannot be attributed solely to EAAs.

PubMed ID: 26216195

Randomized trial: whey protein plus rehab after hip fracture increased knee-extension strength versus control.

PubMed ID: 23881680

Dietary lysine in pigs increased growth and lean measures — suggests improved potential for strength (animal data).

PubMed ID: 22879453

Protein-energy supplement containing EAAs slowed functional decline in frail older adults, implying preserved strength.

PubMed ID: 23193843

COPD RCT: oral EAA increased muscle strength and daily activity in patients (clinically meaningful improvements).

PubMed ID: 22142410

Large RCT in sarcopenic elderly women: exercise + leucine-rich EAA increased knee strength (~+9.3%) and leg mass vs control.

PubMed ID: 21636183

RCT in institutionalized elderly showed improved grip strength (+5.7%) after 8 weeks EAA supplementation.

PubMed ID: 20499791

EAA supplementation in frail COPD patients increased lean mass and physical activity, which supports strength gains.

PubMed ID: 18514630

EAA supplement in sarcopenic elderly increased lean mass and anabolic markers — likely to translate to strength though direct strength measurement not reported.

PubMed ID: 18483167

EAA supplementation timed with resistance training markedly attenuated lower-body strength loss during 28 d bed rest (AART −6% vs AA −22%).

PubMed ID: 16456674

CHO+EAA after resistance training produced anabolic signals and the largest muscle-fiber size gains, which can translate to strength increases.

PubMed ID: 10844622

Oral EAA in hemodialysis patients produced improved grip strength vs placebo.

PubMed ID: 7728405

Essential-amino-acid elemental diet produced short-term grip-strength improvements in RA patients (direct EAA->strength signal, but transient/subjective).

PubMed ID: 24257722

Dose‑response trial showing ~20 g whey maximally stimulates MPS in trained men—supports protein/EAA dosing for strength gains.

PubMed ID: 39683384

RCT showed probiotic increased plasma EAAs and produced significant improvements in strength and muscle mass.

PubMed ID: 39739679

Dileucine during resistance training produced large increases in lower-body 1RM and total strength in trained men.

PubMed ID: 36940921

Randomized trial: BCAA + vitamin D after lumbar surgery produced significantly faster recovery of knee extensor/flexor strength vs control.

PubMed ID: 36437767

Leucine‑enriched whey + resistance training produced larger strength/mass gains and preserved them after detraining (direct RCT evidence).

PubMed ID: 36364828

Leucine‑containing multi‑nutrient supplement improved muscle function and handgrip strength in sarcopenic older adults (clinical RCT, multi‑ingredient).

PubMed ID: 33588378

Presleep casein (protein source of EAAs) plus evening resistance exercise increased overnight muscle protein synthesis — biologically plausable for longer‑term strength gains.

PubMed ID: 33379181

Leucine-enriched whey + vitamin D with exercise improved lean mass in older adults—translates to likely strength benefits.

PubMed ID: 32340904

Leucine‑rich supplement increased handgrip strength in advanced cancer patients in an RCT context.

PubMed ID: 32486007

Soy vs whey matched for leucine: both increased strength during 12 weeks—strong evidence that sufficient EAAs/leucine support strength gains.

PubMed ID: 31278117

Whey+leucine+vitamin D improved 4-m walking speed and 6MWT during rehab, indicating functional strength gains.

PubMed ID: 30273819

Leucine‑rich EAA drink + low‑intensity resistance training in post‑stroke patients produced significant gains in muscle mass and handgrip strength.

PubMed ID: 28285641

EAA supplement produced substantial whole-body net protein anabolism in older adults/COPD, which can support strength gains though strength was not directly measured.

PubMed ID: 27075909

Randomized trial in very frail elderly: nightly leucine‑containing supplement produced significant increases in grip strength and functional tests.

PubMed ID: 25926725

Leucine supplementation plus resistance training produced moderate improvements in leg strength and functional tests in older adults.

PubMed ID: 25444576

Soluble leucine‑rich milk proteins + exercise increased muscle mass and MVC strength in older men.

PubMed ID: 24015719

Long (~9 mo) whey (high‑leucine) during training produced larger lean‑mass gains, which commonly translate to greater strength.

PubMed ID: 24284442

High‑leucine supplement after resistance exercise markedly raised myofibrillar protein synthesis—mechanistic basis for later strength increases.

PubMed ID: 23883636

Elderly women trial: leucine-rich EAA + exercise produced significant muscle strength gains.

PubMed ID: 22524975

Controlled feeding: higher lysine intake ~7.5% improvement in muscle strength over 8 weeks.

PubMed ID: 21623468

Trial in older adults showed improved muscle function (chair-stand time, walking speed) with post-exercise dairy/protein, indicating strength benefits though leucine-enrichment had no clear added effect.

PubMed ID: 20975109

8‑week randomized supplementation (whey+leucine) increased upper‑body strength vs placebo—direct evidence supporting strength gains with amino acid/protein supplementation.

PubMed ID: 16686554

Leucine + whey during 8 weeks of resistance training produced significantly greater strength gains vs carbohydrate placebo.

PubMed ID: 8941534

HMB (a leucine metabolite) trials showed increased fat-free mass and progressive increases in weight lifted/strength.

PubMed ID: 41683325

Small but significant grip-strength gain (+5.2%) with whey + APS in a 4-week human pilot.

PubMed ID: 39765161

Preoperative HMB+Arg+Gln increased 6MWD and functional capacity after surgery (functional/strength-related gains).

PubMed ID: 36501014

Randomized trial of L-arginine+vitamin C in long COVID showed a clinically meaningful increase in handgrip strength (+3.4 kg vs +1.0 kg, p=0.03).

PubMed ID: 29672184

HMB+arginine+glutamine increased lean mass and improved a timed stair‑climb, a functional strength measure in older adults.

PubMed ID: 21807930

HMB+arginine+lysine RCT increased fat-free mass; strength improved in vitamin-D–replete subgroup (human RCT evidence).

PubMed ID: 20386475

Randomized trial in young men showed a 19–22% increase in maintainable work output—direct ergogenic effect relevant to strength.

PubMed ID: 19536417

Whey + EAAs in undernourished elderly increased lean mass and improved ADL (functional performance), which can translate to greater strength (but direct strength not measured).

PubMed ID: 15105032

HMB+arginine+lysine RCT in elderly women produced significant increases in leg/handgrip strength and functional performance.

PubMed ID: 7735336

Arginine markedly amplified GHRH‑stimulated GH release, a hormonal mechanism that can support strength gains over time.

PubMed ID: 31021358

EAA-based supplement increased appendicular lean mass, MVC and peak power in older adults — direct strong evidence of increased strength.

PubMed ID: 16928472

AAKG increased bench-press 1‑RM and Wingate peak power in resistance‑trained men — direct, moderate-strength evidence for acute strength gains.

PubMed ID: 9249084

Postoperative IV amino acids improved nitrogen balance and rapid-turnover proteins—supports preserving/rehabilitating muscle that underlies strength gains.

PubMed ID: 32610608

Stroke rehab timing of leucine-rich supplement tended to produce larger leg strength gains—functional performance relevance.

PubMed ID: 36437767

Adding leucine‑enriched whey to resistance training improved muscle mass/strength and helped preserve gains—translates to better performance in resistance contexts.

PubMed ID: 39739679

Dileucine supplementation during resistance training increased reps to failure and 1RM—directly improved performance measures.

PubMed ID: 39683384

Increased repetitions at 80%RM and improved muscle mass after 12 weeks suggest better performance capacity tied to higher plasma EAAs.

PubMed ID: 24257722

Identified the effective protein/EAA dose for maximal MPS in trained men—practical guidance to optimize exercise outcomes.

PubMed ID: 36720768

EAA supplement produced significantly greater 6‑minute walk distance than whey—direct functional exercise benefit.

PubMed ID: 16456674

Post-exercise CHO+EAA created a favorable anabolic milieu (lower cortisol, higher insulin, less proteolysis) and greater muscle fiber growth—likely to improve performance over time.

PubMed ID: 18483167

Preservation of muscle mass and lower-body strength during prolonged disuse implies maintained functional/exercise capacity with EAA+resistance strategies.

PubMed ID: 18835539

EAA supplementation in CHF patients improved exercise output and peak VO2 over 2 months — direct evidence for better exercise performance.

PubMed ID: 20499791

EAA supplementation increased physical activity and PaO2 in frail COPD patients, consistent with performance gains.

PubMed ID: 20928906

EAAs plus resistance exercise preserved more muscle during bed rest, which helps sustain performance.

PubMed ID: 22142410

Exercise intervention with EAA improved walking speed and knee strength in sarcopenic women, functional performance benefits.

PubMed ID: 23193843

Oral EAA for 12 weeks in COPD outpatients increased daily steps and QoL, indicating improved real-world exercise capacity.

PubMed ID: 22879453

Protein-energy supplement containing EAAs preserved physical functioning and gait speed vs decline in controls.

PubMed ID: 25317071

Resistance exercise combined with EAAs during bed rest preserved muscle density and quality, supporting exercise performance when EAAs accompany training.

PubMed ID: 26004031

EAA drink with physiotherapy improved 6MWD in ICU survivors—clinically meaningful exercise/functional performance gain.

PubMed ID: 29667153

EAA supplementation during rehab improved 6MWD gains vs control, reflecting improved exercise/functional performance after hip fracture.

PubMed ID: 29750251

EAA + aerobic exercise increased VO2peak and walking speed (exercise capacity) and strength when combined with EAA.

PubMed ID: 33317565

Peanut protein with resistance training increased muscle size and some strength indices—supports enhanced training responses.

PubMed ID: 34191423

EAA + exercise improved SMMI and balance—functional benefits relevant to performance in older adults.

PubMed ID: 33475727

EAA product improved 6‑minute walk distance and strength vs whey/no supplement in older adults with low physical function.

PubMed ID: 16928472

AAKG increased bench‑press 1‑RM and Wingate peak power — direct evidence of improved anaerobic exercise performance.

PubMed ID: 33805883

HMB+AAKG prevented declines in jump performance during intense training camp — directly supports maintained/improved functional performance under load.

PubMed ID: 31021358

EAA‑based supplement increased peak power and strength in older adults — performance‑relevant gains.

PubMed ID: 9809945

Prolonged L-arginine infusion markedly increased pain-free and absolute walking distances in claudication patients.

PubMed ID: 10737151

Nutrient bar containing L‑arginine and other nutrients markedly improved walking distance and QoL in claudication (randomized double‑blind).

PubMed ID: 11019421

Ten‑day L-arginine (15 g/day) improved endothelial function and increased exercise tolerance and reduced platelet aggregation in stable angina patients — clinically relevant exercise benefit.

PubMed ID: 11755284

Arginine‑rich medical food improved flow‑mediated dilation and treadmill exercise time in stable angina patients (randomized crossover).

PubMed ID: 20386475

Double‑blind trial reported a large (≈19–22%) increase in maintainable work output in young men after arginine‑based supplementation—direct performance benefit.

PubMed ID: 20555372

Four weeks of arginine‑based supplement increased GET and power at GET (modest but significant improvement in submaximal performance).

PubMed ID: 26097441

Citrulline+glutathione elevated NO metabolites post‑resistance exercise — plausible mechanistic support for performance/acute exercise capacity.

PubMed ID: 28120856

2 g/day L‑arginine for 45 days modestly increased VO2max in male soccer players — direct exercise performance benefit.

PubMed ID: 30999554

Arginine+valine+serine mixture reduced perceived fatigue and RPE during a 2‑h cycling task, improving subjective exercise tolerance.

PubMed ID: 33260139

Single-dose L-arginine lowered VO2, ventilation and HR during intense interval exercise, making exercise objectively and subjectively easier in overweight men.

PubMed ID: 36501014

L-arginine+vitamin C increased 6‑minute walk distance (median +30 m vs 0 m) in long COVID—clinically meaningful functional performance gain.

PubMed ID: 39765161

Preoperative HMB/Arg/Gln improved 6MWD and functional measures after surgery (improved exercise capacity).

PubMed ID: 8941534

HMB increased weight lifted and improved training adaptations (supports some performance improvements during resistance training).

PubMed ID: 16686554

Leucine + whey during training increased strength versus placebo, an important component of exercise performance.

PubMed ID: 20975109

Whey+leucine increased upper-body strength and push-up performance over 8 weeks—direct evidence for improved performance metrics with amino-acid/protein supplementation.

PubMed ID: 24284442

Enhanced postexercise myofibrillar protein synthesis from leucine supports recovery and adaptation underlying performance gains.

PubMed ID: 24015719

Whey supplementation produced larger lean‑mass gains during training, supportive of performance improvements.

PubMed ID: 25444576

Leucine‑rich soluble milk proteins plus training increased muscle mass, strength and time‑to‑task‑failure (delayed fatigue).

PubMed ID: 25926725

Leucine with resistance training led to moderate improvements in mobility and functional tests, reflecting better exercise-related performance.

PubMed ID: 27075909

Walking speed and leg function improved significantly with nightly leucine‑containing supplement in frail elderly — direct functional exercise performance benefits.

PubMed ID: 28381530

Improved whole‑body leucine balance after protein/leucine ingestion post‑exercise suggests support for subsequent performance/recovery.

PubMed ID: 30273819

EAA (leucine‑rich) supplementation with resistance training improved functional ability (FIM motor) and strength post‑stroke, indicating improved performance capacity in rehab.

PubMed ID: 31278117

Supplement during rehabilitation improved 6MWT distance and walking speed—practical exercise performance gains.

PubMed ID: 32230954

Leucine in institutionalized older adults improved walking speed and preserved muscle mass—direct performance improvement.

PubMed ID: 32486007

Leucine-matched soy vs whey increased strength and lean mass during training—supports improved exercise performance.

PubMed ID: 32928579

Whey/leucine/vitamin D supplement improved gait speed more than counseling—functional performance gain.

PubMed ID: 33379181

Leucine-enriched whey + exercise increased appendicular and total lean mass—translates into better exercise capacity.

PubMed ID: 21636183

8-week EAA supplementation improved GDS depressive symptom scores in elderly patients in a randomized trial.

PubMed ID: 22717170

Short-term oral tryptophan lowered cortisol response to social stress in a genotype-defined group—physiologic evidence for mood/stress modulation.

PubMed ID: 24076224

Tryptophan‑rich drink increased plasma TRP/LNAA, improved mood in healthy women and altered mood‑related brain connectivity (human randomized crossover).

PubMed ID: 23419004

Tryptophan depletion in adults with ADHD increased omissions and altered reaction times, showing serotonergic effects on attention/affect relevant to mood/affective function.

PubMed ID: 37183855

Higher KYN/TRP associated with suicidal ideation in inflamed TRD— implicates tryptophan pathway in severe mood outcomes.

PubMed ID: 36195339

Acute tryptophan depletion altered salience‑network connectivity in recovered anorexia patients, linking TRP availability to neural circuits of emotion/reward.

PubMed ID: 33631385

Acute tryptophan depletion attenuated conditioned threat memory expression, showing that manipulating tryptophan (EAA precursor to serotonin) influences emotional processing.

PubMed ID: 33743283

Tryptophan‑enriched diet improved mood and empathy measures in older adults with specific serotonin transporter genotype—direct TRP→mood evidence (genotype‑dependent).

PubMed ID: 31902864

Randomized trial: 7‑day tryptophan+B6+nicotinamide improved depressive scores in young adults with severe subclinical depression (direct clinical evidence).

PubMed ID: 25572038

Randomized placebo-controlled trial: low‑dose tryptophan‑rich supplement shifted emotional processing away from negative stimuli and increased subjective energy/arousal.

PubMed ID: 25869808

Acute tryptophan depletion in humans reduced TRP:LNAAs and shifted decision‑making toward habitual choices (serotonergic modulation linked to mood/cognition).

PubMed ID: 26004031

ICU survivors receiving EAA drink plus rehab experienced reductions in anxiety and depression—clinical mood benefit.

PubMed ID: 25227564

L‑lysine (6 g/day) as adjunct to risperidone produced greater reductions in negative and general psychopathology in schizophrenia (clinical mood/psych symptoms).

PubMed ID: 24845181

Tryptophan lowered stress cortisol and blunted stress‑driven appetite in vulnerable genotypes, consistent with mood/stress benefits.

PubMed ID: 10418696

Acute depletion of the essential amino acid tryptophan (70–80% drop) caused relapse in many SSRI responders—strong causal link between an EAA and mood.

PubMed ID: 25036731

Dietary tryptophan enhancement altered stress responses and blocked stress‑induced craving—direct human EAA (tryptophan) effect relevant to mood regulation.

PubMed ID: 30188382

Manipulating CNS tryptophan produced marked changes in catecholamines and endocrine markers—mechanistic human evidence linking tryptophan to neuroendocrine pathways that affect mood.

PubMed ID: 17510493

Randomized double‑blind trial: L‑lysine + L‑arginine significantly reduced trait and stress‑induced state anxiety and lowered salivary cortisol in men.

PubMed ID: 30116859

Ketamine trial metabolomics: higher arginine (and lower kynurenine ratio) associated with acute antidepressant response — associative evidence linking arginine pathway to mood response.

PubMed ID: 36596553

Combined theanine+arginine lowered an acute physiological stress marker (salivary alpha‑amylase) vs placebo, which can translate to reduced stress and improved mood.

PubMed ID: 36235570

BCAA supplementation improved depressive symptoms in elderly T2D patients (small clinical trial).

PubMed ID: 38728455

Leucine‑enriched EAAs improved QoL (SF‑36) in older knee OA patients, a patient‑reported outcome related to mood/well‑being.

PubMed ID: 24858376

Egg‑white hydrolysate increased TRP availability and prevented wellbeing decline/fatigue in middle‑aged women (dose‑dependent, RCT evidence).

PubMed ID: 23473652

Tryptophan depletion lowered plasma tryptophan and significantly worsened mood in humans — direct biochemical/mood link.

PubMed ID: 1880796

L-tryptophan adjunct reduced anxiety and cigarette consumption during withdrawal—clinical mood benefit in addiction context.

PubMed ID: 8448264

Baseline low tryptophan in bulimics associated with mood worsening after glucose—supports mood relevance.

PubMed ID: 10023508

L-tryptophan reduced luteal-phase mood symptoms vs placebo (34.5% vs 10.4% reduction), clear mood benefit.

PubMed ID: 10721042

Oral tryptophan during the luteal phase reduced premenstrual mood symptoms vs placebo (randomized DBRCT).

PubMed ID: 11022398

Adjunctive tryptophan with fluoxetine accelerated early antidepressant response and protected slow-wave sleep initially.

PubMed ID: 11425511

Tryptophan supplementation decreased quarrelsomeness and increased dominant social behavior in a randomized crossover study—positive behavioral/mood effects.

PubMed ID: 11513817

Acute tryptophan depletion produced large plasma decreases and provoked mood lowering in relatives of bipolar patients—supports mood sensitivity to tryptophan status.

PubMed ID: 12496952

Tryptophan depletion altered reward discrimination in decision tasks — relevant to affective processing.

PubMed ID: 12655621

Acute lowering of tryptophan produced clinically meaningful reductions in anxiety in anorexia groups — strong mood-relevant effect of an EAA precursor manipulation.

PubMed ID: 15289275

Tryptophan depletion transiently reinstated depressive symptoms in remitted MDD, implicating TRP/serotonin in mood regulation.

PubMed ID: 15737667

Low-dose tryptophan depletion altered emotional/cognitive processing in recovered depressed patients, indicating Trp modulates mood-relevant processes.

PubMed ID: 16767422

Two weeks of tryptophan produced a positive emotional processing bias in women (better happy‑face recognition, less negative vigilance).

PubMed ID: 16893526

Acute lowering of tryptophan (an EAA) increased depressive symptoms in people with prior MDD—strong evidence that tryptophan availability affects mood.

PubMed ID: 16953000

Tryptophan depletion changed behavioral depression ratings and regional brain metabolism (supports a role of tryptophan in mood regulation).

PubMed ID: 17544379

Acute tryptophan depletion produced sex-dependent mood/impulsivity changes, supporting a role of tryptophan/serotonergic EAAs in mood regulation.

PubMed ID: 17401733

An individualized essential‑amino‑acid mixture added to antidepressant therapy produced significant clinical improvement in depressive symptoms.

PubMed ID: 17689173

Carbohydrate ingestion raised tryptophan availability and improved mood and stress-related performance, linking an EAA (Trp) to mood benefits.

PubMed ID: 19721848

Tryptophan depletion lowered mood overall and increased binge urges in bulimic patients—direct clinical EAA (tryptophan) effect on mood.

PubMed ID: 20499791

EAA supplementation improved cognition (MMSE) in elderly COPD patients—beneficial central effects that can accompany mood/cognitive improvement.

PubMed ID: 25646324

High‑whey/leucine supplement preserved appendicular muscle mass during intentional weight loss, aiding favorable body composition.

PubMed ID: 38613322

Perioperative immunonutrition (including arginine) reduced postoperative weight and arm-circumference loss versus preop-only (preservation of weight/anthropometry).

PubMed ID: 37739730

HMB/Arg/Gln group experienced less weight loss during chemoradiation (clinically relevant weight outcome).

PubMed ID: 36297065

Arginine- and BCAA-enriched wheat biscuits lowered postprandial glucose and modified insulin/gut-hormone responses—metabolic and satiety effects relevant to weight control.

PubMed ID: 29901417

Combined training + 1 g/day L‑arginine improved BMI and fasting glucose vs controls in elderly men (favors weight/BMI reduction).

PubMed ID: 23708056

Arginine improved insulin sensitivity in obese patients, a metabolic change that can support weight management strategies.

PubMed ID: 23849811

Immunonutrition group maintained or gained weight during chemoradiotherapy compared with controls.

PubMed ID: 22517293

In centrally obese women on a hypocaloric diet, L‑arginine reduced waist circumference over 6 weeks — direct positive evidence for body‑composition/weight management.

PubMed ID: 18820852

Long (36‑month) keto‑amino acid + low‑protein diet produced marked reductions in BMI/visceral fat — strong evidence for weight/fat change in that intervention context.

PubMed ID: 16772327

L-arginine added to diet/exercise produced significant reductions in fat mass and waist circumference in insulin‑resistant obese subjects.

PubMed ID: 14646190

A multi‑ingredient tea containing arginine reduced percent body fat and triglycerides versus control, supporting weight/fat loss (confounded by caffeine/other ingredients).

PubMed ID: 10850936

HMB/glutamine/arginine supplementation produced several kilograms of weight gain and increased lean body mass in HIV-wasting patients; relevant to targeted weight gain/maintenance.

PubMed ID: 12662006

Arginine supplementation alongside TB therapy produced greater weight gain in undernourished TB patients—direct weight effect.

PubMed ID: 34382947

AXA1125 lowered liver fat and improved insulin resistance — metabolic changes consistent with weight/metabolic management.

PubMed ID: 33475727

Tailored EAA supplement group lost fat mass and improved walking distance—supports body composition improvement potential.

PubMed ID: 32560181

Oral phenylalanine (10 g) reduced subsequent energy intake (~184 kcal) and modulated CCK/insulin — direct appetite/weight relevance.

PubMed ID: 32729586

Intragastric tryptophan raised Trp/LNAA and was associated with reduced meal intake in lean men — supports appetite/weight control.

PubMed ID: 29996492

Low‑protein formula enriched with alpha‑lactalbumin (improves EAA quality) reduced rapid weight gain in infants versus higher‑protein formulas.

PubMed ID: 29642492

Intragastric tryptophan (3 g) slowed gastric emptying and reduced early postprandial glucose—physiologic effects relevant to weight control/appetite.

PubMed ID: 30089292

Older sarcopenic obese men taking EAAs lost body fat while gaining muscle, a direct weight/composition management effect.

PubMed ID: 25644344

During a low‑calorie diet, whey helped preserve MPS (maintain lean mass) which supports healthier weight loss composition.

PubMed ID: 25701333

Low‑AGE diet (dietary modification related to protein/AA processing) reduced body fat and improved anthropometrics in overweight men.

PubMed ID: 23361591

Randomized trial: daily histidine (4 g) for 12 weeks reduced BMI, waist circumference and fat mass and improved HOMA‑IR in obese women — strong human evidence for weight/fat reduction.

PubMed ID: 22703579

Fortified partial meal replacements (increasing EAAs among other nutrients) produced modest weight loss over 90 days.

PubMed ID: 20973462

Biofortified maize increased essential AA intake and improved child weight-for-height (recovery) and prevented growth faltering.

PubMed ID: 18342398

Oral phenylalanine (10 g) reduced daily energy intake (~11%) in a subgroup of overweight women — relevant to appetite-driven weight management.

PubMed ID: 33369909

Low-dose leucine combined with other agents produced modest but significant placebo-adjusted weight loss over 24 weeks—direct interventional evidence.

PubMed ID: 32610608

In stroke rehab, breakfast timing of leucine-rich supplement reduced body fat mass significantly vs post-exercise timing—direct weight/fat management evidence.

PubMed ID: 27075909

Frail elderly gained body weight with nightly leucine‑containing supplement versus control — relevant to preventing weight loss or supporting healthy weight in undernourished.

PubMed ID: 12182253

Ibuprofen‑arginate formulation produced faster pain relief and higher early responder rates after dental surgery compared with standard ibuprofen; effect likely formulation-specific.

PubMed ID: 23645695

In pediatric sickle cell crises, oral L-arginine reduced opioid use and discharge pain scores—strong evidence for analgesic/soreness reduction in that context.

PubMed ID: 22988687

Single application of 8% arginine paste produced large immediate reductions in dentin hypersensitivity (oral pain relief).

PubMed ID: 12242597

Large trial confirming faster analgesic onset for arginate ibuprofen—supports reduced early pain/soreness via arginate formulation.

PubMed ID: 12162473

Arginine salt (ibuprofen arginate) accelerated pain relief onset after dental surgery vs standard ibuprofen — reduced early postoperative soreness (formulation effect).

PubMed ID: 9738364

Ibuprofen L‑arginine formulation produced faster and greater analgesia vs naproxen after dental extraction—clinical pain reduction signal (formulation includes arginine salt).

PubMed ID: 23043451

Patients receiving a supplement containing arginine‑AKG reported less postoperative shoulder pain (reduced soreness) after rotator cuff repair.

PubMed ID: 29473247

D‑methionine reduced patient‑reported oral pain (grade ≥2) after radiotherapy vs placebo.

PubMed ID: 25765536

Topical tryptophan reduced pain in chronic leg ulcers, showing analgesic/comfort benefit associated with wound healing (reduced local soreness).

PubMed ID: 16456674

The decreased proteolysis and blunted cortisol after exercise with CHO+EAA imply improved recovery and likely reduced muscle soreness, though soreness was not directly measured.

PubMed ID: 1762811

IV L-tryptophan reduced postoperative pain versus placebo with dose-dependent longer relief—reduced soreness/pain.

PubMed ID: 40151031

Multi‑ingredient supplement improved pain in fibromyalgia trial—relevant to perceived soreness/pain reduction.

PubMed ID: 8941534

HMB reduced exercise-induced proteolysis and CK (marker of muscle damage), consistent with reduced soreness/damage.

PubMed ID: 39616105

Ibuprofen-arginine + dexamethasone delayed peak pain and reduced inflammatory markers after third-molar extraction (large pain/inflammation effect).

PubMed ID: 37739730

HMB/Arg/Gln markedly reduced severe oral mucositis (substantial reduction in mucosal 'soreness').

PubMed ID: 36449096

L-arginine treatment reduced pain scores (VAS) in chronic anal fissure patients—direct evidence of reduced pain/soreness in a clinical wound context.

PubMed ID: 33075179

Oral L‑arginine reduced opioid requirements and hastened pain relief in sickle‑cell VOC—strong pain‑reduction evidence relevant to soreness/acute pain.

PubMed ID: 25237981

EAA medical food markedly reduced chronic low back pain and disability versus ibuprofen over 28 days—direct clinical reduction in musculoskeletal soreness/pain.

PubMed ID: 25851453

Topical cream containing urea+arginine+carnosine substantially improved diabetic foot skin dryness/hydration vs glycerol cream (clinical dermatology trial).

PubMed ID: 31347768

Topical product containing L‑arginine significantly reduced inflammatory acne and pore size vs control in a small RCT — strong direct skin benefit.

PubMed ID: 2382229

Oral arginine increased collagen deposition in standardized wounds — plausible mechanism for improved skin repair/appearance.

PubMed ID: 8342121

Oral arginine increased wound collagen (hydroxyproline) and total protein in wound catheters—direct collagen‑promoting effect relevant to skin appearance and repair.

PubMed ID: 12192323

Randomized supplementation with arginine/HMB/glutamine increased collagen deposition in implanted wound models in older adults — directly relevant to skin repair/appearance.

PubMed ID: 15681102

Arginine-containing perioperative nutrition greatly increased wound collagen and eliminated wound complications—direct evidence of improved wound/skin healing (multinutrient formula).

PubMed ID: 16929239

Arginine-enhanced enteral feeding reduced fistulae after head/neck surgery—clinical improvement in surgical wound outcomes relevant to skin integrity.

PubMed ID: 20598855

Arginine‑enriched oral supplement accelerated pressure‑ulcer healing—clinical skin‑healing effect likely to improve local skin appearance/condition.

PubMed ID: 25643304

Arginine-enriched formula accelerated pressure-ulcer healing—direct skin-repair benefit that may improve appearance.

PubMed ID: 22079390

Nutriceutical including methionine sped skin lesion healing and reduced relapses — directly relevant to skin outcomes.

PubMed ID: 24750568

Topical cream containing L‑isoleucine markedly improved facial atopic eczema vs emollient; relevant to topical EAA effects on skin appearance.

PubMed ID: 39000417

Topical phenylalanine butyramide modestly lightened skin, reduced brown spots and improved elasticity in a 30‑day RCT — Phe is an essential AA derivative, topical evidence for skin benefits.

PubMed ID: 21756141

Randomized controlled trial: oral stabilized carnosine significantly improved measured skin parameters and visual appearance vs placebo over 3 months.

PubMed ID: 37265096

Lysine‑crosslinked hyaluronic filler stimulated local collagen and gave durable cosmetic correction—direct skin benefit (local).

PubMed ID: 7562275

Amino-acid–based infant formula was associated with eczema improvement compared with hydrolyzed formula (direct skin benefit in infants).

PubMed ID: 17432541

Oral phenylalanine (an essential amino acid) plus topical antioxidant therapy produced greater repigmentation and melanocyte presence in vitiligo patients; EAA contribution plausible but intervention was multi-component.

PubMed ID: 19958429

Topical phenylalanine derivative + niacinamide reduced facial hyperpigmentation—direct cosmetic benefit from an EAA derivative (topical).

PubMed ID: 21499725

Topical lysine‑hyaluronate significantly sped pressure‑ulcer healing and reduced lesion size—direct improvement of skin condition.

PubMed ID: 25765536

Topical tryptophan accelerated wound healing (re-epithelialization) and reduced pain in chronic leg ulcers — direct skin healing evidence.

PubMed ID: 23009311

Small RCT of a urea/arginine/carnosine foot cream in type 2 diabetics showed large, clinically meaningful reductions in skin dryness—direct topical evidence for skin improvement involving arginine.

PubMed ID: 21084654

Rye bread increased tryptophan-related metabolites (tryptophan affects satiety/serotonin); this trial links diet-related tryptophan metabolism to satiety signals—strongest direct link in dataset to appetite control.

PubMed ID: 25036731

A tryptophan‑enriched diet (an EAA) reduced stress‑induced alcohol craving in binge drinkers — direct behavioral appetite/craving effect in humans (moderate evidence).

PubMed ID: 36297065

Enriched biscuits increased GLP-1/PYY and subjective fullness vs control—direct evidence for short-term appetite suppression.

PubMed ID: 38341907

Leucine‑enriched oral nutrition supplement markedly increased daily energy (+≈793 kcal/day) and protein intake (+≈40.7 g/day) in malnourished cancer patients—strong effect on intake/appetite in that context.

PubMed ID: 29897544

Randomized crossover trial: leucine‑peptide bars (2–3 g) increased fullness and reduced prospective food consumption vs control.

PubMed ID: 27413125

GMP medical foods were more acceptable than AA formulas in PKU patients—affects intake/appetite.

PubMed ID: 8220653

Tryptophan availability manipulated by breakfast and serotonin affected subsequent carbohydrate choice—direct link to appetite/food selection.

PubMed ID: 8448264

Lower baseline tryptophan in bulimic women and glucose-provoked mood/binge urges link tryptophan status to appetite/urge control.

PubMed ID: 8555377

Breakfast composition altered plasma Trp/LNAA and subsequent lunch intake in bulimic subjects—evidence linking amino-acid profiles to short-term appetite control.

PubMed ID: 18342398

High-dose phenylalanine decreased energy intake in overweight women, indicating appetite-suppressing effects of certain EAAs.

PubMed ID: 20553564

Acute tryptophan depletion in healthy women increased hunger ratings; shows TRP status influences appetite.

PubMed ID: 23361591

Histidine supplementation produced weight/fat loss in humans; likely partly mediated by effects on appetite/metabolic regulation (clinical signals).

PubMed ID: 24845181

Subchronic tryptophan reduced stress‑induced cortisol and prevented stress‑driven appetite increases in genotype‑defined humans.

PubMed ID: 29642492

Tryptophan administration slowed gastric emptying, an effect that often reduces appetite/early postprandial hunger.

PubMed ID: 32729586

Exogenous tryptophan raised central precursor index and associated with suppressed intake in lean men — direct appetite effect.

PubMed ID: 32560181

L‑phenylalanine 10 g increased CCK and significantly lowered subsequent food intake — strong direct evidence for appetite suppression.

PubMed ID: 11133899

Acute exercise greatly increased plasma CCK and changes related to free tryptophan/BCAA ratio—direct physiological link between amino-acid ratios and a satiety hormone.

PubMed ID: 35666855

Infant formula with higher EAAs increased energetic efficiency (+14%) despite lower intake, indicating improved energy use/availability (infant study).

PubMed ID: 26004031

Functional gains in walking distance and mood improvements with EAA drink and rehab indicate increased functional energy/endurance in survivors.

PubMed ID: 20499791

EAA supplementation increased physical activity by ~80% and improved oxygenation in frail COPD patients—consistent with greater energy/functional capacity.

PubMed ID: 36720768

Functional improvements (6MW) and proteomic shifts imply better physical capacity/energy in older adults.

PubMed ID: 30954363

Supplemented COPD patients took more daily steps (≈+1,030 steps/day), suggesting improved activity/energy in a fatigued population.

PubMed ID: 38341907

Leucine‑enriched oral nutrition supplement increased daily energy intake by ≈793 kcal/day in malnourished cancer patients—clear increase in energy intake.

PubMed ID: 40316462

L-arginine+vitamin C improved dyspnea and daily-activity performance in COPD, reflecting increased functional energy/endurance.

PubMed ID: 36804278

Hospitalized COVID trial shortened stay and reduced respiratory support—clinical recovery likely translates to improved energy/fatigue, though energy was not the direct endpoint.

PubMed ID: 36982151

Long-COVID supplementation improved biochemical markers and reported symptom improvements consistent with higher energy/fatigue reduction.

PubMed ID: 36501014

Marked reduction in fatigue prevalence (8.7% vs 80.1% placebo) and improved walk distance indicate substantial gain in perceived/functional energy with L-arginine+vitamin C.

PubMed ID: 33610421

L-arginine in ischemic heart failure improved physical QoL scores, suggesting higher functional energy.

PubMed ID: 33260139

Acute L-arginine made intense interval exercise feel easier via lower VO2 and HR, consistent with increased exercise energy/efficiency.

PubMed ID: 30999554

AA mix reduced subjective fatigue during exercise (participants reported lower VAS fatigue), implying higher perceived energy.

PubMed ID: 20386475

Large increase in maintainable work output implies greater usable energy/ATP turnover during exercise after supplementation.

PubMed ID: 37263523

Sapropterin in PKU lowered phenylalanine and improved parent-reported attention/hyperactivity—direct AA-related improvement in attention (pediatric PKU context).

PubMed ID: 35932158

EAA mixture produced a modest but statistically significant improvement in frontal/executive function (FAB) in mild AD—direct evidence for improved focus/executive performance.

PubMed ID: 25572038

Tryptophan‑rich supplement trial showed modest improvements in reaction time and attention in women.

PubMed ID: 25533024

Lowering blood phenylalanine in responsive PKU patients improved inattentive symptoms and some executive functions — direct evidence that an essential AA affects attention/executive function (clinical trial).

PubMed ID: 23359467

In adolescents who self‑injure, TRP depletion increased impulsivity but also increased an attention measure (d') — indicates TRP modulates attentional processes.

PubMed ID: 23419004

Acute tryptophan depletion altered omission errors and reaction times in adults with ADHD — shows TRP/serotonin impacts attention/focus (human experimental).

PubMed ID: 17689173

Raising plasma tryptophan (via carbohydrate) improved stress-related cognitive performance, implying potential focus benefits under stress.

PubMed ID: 12759801

Tryptophan augmentation produced strong correlations with improved delayed memory in ex-MDMA users — robust evidence for cognitive benefits.

PubMed ID: 12408183

Stopping Phe-restricted diet in PKU linked to worse cognitive test scores and later thinking problems — strong relevance to sustained cognitive focus.

PubMed ID: 11351939

Tryptophan depletion in healthy volunteers impaired aspects of memory and cognitive control—direct evidence for EAA impact on cognition/focus.

PubMed ID: 1985428

In PKU, lifelong control of phenylalanine related to normal IQ by age 12—cognitive/attention relevance to amino-acid control.

PubMed ID: 12036812

Alpha-lactalbumin increased Trp:LNAA ratio and improved memory scanning (cognitive performance) in stress-vulnerable subjects — direct cognitive/focus effect.

PubMed ID: 28552878

Trial in frail elderly showed improved global cognition (MMSE, NM scale) with an L‑leucine‑rich supplement mixture — supports potential benefit for attention/focus though confounded by other ingredients.

PubMed ID: 31581523

Randomized acute trial of an arginine formulation improved processing speed and reduced executive errors—direct human cognitive/focus benefit (short-term).

PubMed ID: 9809945

Improved walking distances in PAD reflect increased functional endurance.

PubMed ID: 29667153

Significant improvement in 6MWD with EAAs during rehab indicates enhanced endurance/functional capacity.

PubMed ID: 18835539

Observed improvements in peak VO2 and exercise output in CHF patients on EAA suggest increased endurance capacity.

PubMed ID: 36720768

Larger 6‑minute walk improvement with EAA suggests endurance benefit in older adults.

PubMed ID: 39739679

Dileucine increased repetitions to failure (an endurance-related outcome) more than leucine or placebo in trained men.

PubMed ID: 27075909

Peak expiratory flow and walking speed improved, suggesting some endurance/functional capacity benefits in frail elderly.

PubMed ID: 25444576

Time to task failure improved in trained participants receiving soluble leucine‑rich proteins, indicating enhanced muscular endurance.

PubMed ID: 36501014

Improved 6‑min walk distance in long COVID indicates enhanced functional endurance with L-arginine+vitamin C.

PubMed ID: 30999554

AA mix (Arg+Val+Ser) reduced subjective fatigue during prolonged cycling, consistent with improved endurance perception.

PubMed ID: 28120856

L‑arginine increased VO2max modestly in athletes — endurance‑related improvement.

PubMed ID: 20555372

Four‑week supplement improved gas exchange threshold and power at GET, consistent with improved submaximal endurance.

PubMed ID: 20386475

Marked increases in fatigue‑threshold work capacity (PWCFT) indicate improved endurance performance.

PubMed ID: 11019421

Improvements in endothelial function and exercise tolerance in angina patients suggest potential endurance benefits in disease contexts.

PubMed ID: 10737151

Arginine‑containing nutrient bar increased pain‑free and total walking distance in intermittent claudication, reflecting improved functional endurance.

PubMed ID: 41125682

Nightly melatonin for 10 weeks reduced oxidative stress and inflammatory markers and is directly relevant to sleep quality (not an EAA).

PubMed ID: 40151031

Combination supplement (CoQ10, tryptophan, magnesium) improved sleep quality in fibromyalgia RCT.

PubMed ID: 11022398

Adding tryptophan to fluoxetine protected slow-wave sleep early in treatment, indicating sleep-protective effects of tryptophan in that setting.

PubMed ID: 16053244

Both protein-derived and pharmaceutical tryptophan taken with carbohydrate reduced time awake at night and improved objective and subjective sleep measures—direct supportive evidence.

PubMed ID: 17693960

Infant day/night formulas higher in tryptophan at night increased actual nighttime sleep (+0.91 h), reduced sleep latency and improved sleep efficiency—strong direct sleep benefit from an essential AA manipulation.

PubMed ID: 19925721

Infants given tryptophan-enriched cereal had objective improvements in sleep and fewer night wakings—direct clinical EAA (tryptophan) benefit for sleep.

PubMed ID: 25644221

Seven days of oral tryptophan improved PSQI sleep quality in genetically/psychologically vulnerable participants (strong subgroup clinical effect).

PubMed ID: 27428201

Two‑week oral tryptophan improved insomnia (AIS) in detoxified drug users vs placebo (moderate, short trial).

PubMed ID: 31237183

Nightly 1000 mg tryptophan modestly increased objective sleep efficiency and decreased WASO in healthy adults.

PubMed ID: 31621274

In pediatric trial melatonin + tryptophan + B6 significantly reduced night awakenings vs melatonin alone (pilot evidence).

PubMed ID: 34199006

Nightly whey‑protein + GOS modestly improved PSQI in a per‑protocol analysis and lowered early‑morning cortisol—evidence for modest sleep benefit.

PubMed ID: 40072601

14‑day evening product containing tryptophan and whey modestly shortened sleep onset and improved next‑day sleepiness.

PubMed ID: 37357646

Oral hydrolyzed collagen plus AAs improved clinical hair outcomes when added to standard hair-loss treatment over 12 weeks.