proof.fit

Glycine

17 benefits mapped to clinical evidence across supplements.

Serves the goals:Bone & JointCognitionEnergyEssential HealthFitness

Benefit Evidence

Wellbeing
Strong

Improved nutrition, immunity

Psychiatric symptoms ↓

2,248 people
Mood balance
Strong

Mood uplift 4.6 pts

Anxiety/stress down 2.4

874 people
Focus & concentration
Moderate

Focus: attention, memory

Focus: +1.7 T-score

1,196 people
Energy & Fatigue
Moderate

Glucose uptake/flow +24–49%

Hemoglobin/iron + GI better

1,155 people
Digestive support
Moderate

GI symptoms -

Iron tolerance +

Digestive motility

1,124 people
Stress & Anxiety
Moderate

Anxiety/stress −2.4

Depression/suicide

551 people
Skin health
Moderate

Skin hydration/elasticity

+26%, +5.7

Pigmentation/redness/wrinkles:-19.5%

633 people
Memory
Moderate

Cognition +2 T-score

Memory retrieval improved

Hippocampal learning boosted

869 people
Illness recovery
Moderate

Better recovery +↓1.6 days

Immune/metabolic recovery +↓50% mortality

593 people
Weight management
Moderate

Lower diabetes risk

Weight loss +3.5kg

Improved weight maintenance

1,539 people
Mental clarity
Moderate

Negative symptoms ↓ ~36%

Cognition/attention slightly improved

846 people
Endurance
Moderate

Endurance: +22% work

Endurance: +16% work

Endurance: +1.4 g/dL Hb

448 people
Joint comfort
Moderate

Pain relief, better tolerance

Cartilage scores, lower lesions

420 people
Relaxation
Moderate

Sleep better 24min

Mood/negative symptoms -36%

246 people
Stress resilience
Moderate

Oxidative stress, BP ↓

Immune recovery, TNF ↓

205 people
Muscle soreness
Weak

RFD, decel impulse

Opioids -31%

334 people
Exercise recovery
Weak

Protein balance ↑

Collagen synthesis ↑

87 people

Products with Glycine

Search all

620 products whose verified label declares Glycine — not every bottle that mentions it in a title.

NOW

NOW Foods Supplements, Glycine 1,000 mg Free-Form, Neurotransmitter

Glycine 3 g

$11.62Blended Vitamin & Mineral Supplements

Life Extension

Life Extension Glycine, 1000 mg, Amino Acid that Promotes Healthy

Glycine 1000 mg

$12.00Blended Vitamin & Mineral Supplements

NOW

NOW Foods Supplements, Glycine Pure Powder, Promotes Restful Sleep*

Glycine 3 g

$18.37Diet & Sports Nutrition

Garden of Life

Garden of Life Organic Vegan Protein Powder, Plant Based & BCAAs

Includes 0g Added Sugars 0 g ¡ Vitamin D 10 mcg ¡ Calcium 30 mg +53 more

$29.06Pea

Pure Encapsulations

Pure Encapsulations DIM Detox, 60 Capsules

BioResponse DIM Diindolylmethane Complex 100 mg ¡ Starch 0 NP ¡ Diindolylmethane 0 NP +13 more

$58.00DIM Supplements

BulkSupplements

BulkSupplements.com Glycine Powder

Glycine 3 g

$22.97BCAAs

Being studied right now

Recruiting clinical trials registered on ClinicalTrials.gov. A trial in progress has no result yet — this is what the field is asking, not what it found.

Magnesium Bisglycinate in Major Depressive DisorderGlycine ¡ Major Depressive Disorder ¡ 84 participants planned ¡ ClinicalTrials.govRecruitingGlycine and Magnesium+Thiamine for the Treatment of Primary Ciliary DyskinesiaGlycine ¡ Primary Ciliary Dyskinesia ¡ 60 participants planned ¡ ClinicalTrials.govRecruitingPilot Study: Impact of Biomarker-Guided Dietary Supplementation on Quality-of-Life Measures in Subjects With Chronic PainGlycine ¡ Chronic Pain ¡ 75 participants planned ¡ ClinicalTrials.govRecruiting