Biotin

PubMed ID: 16677798

28‑day pharmacological biotin lowered triglycerides/VLDL — indicates metabolic substrate handling changes consistent with altered nutrient use.

PubMed ID: 25300112

Vitamin‑mineral complex improved glycemia and serum micronutrients on low calorie diet — indicates improved nutrient status/metabolic handling (contains biotin).

PubMed ID: 22151477

Multivitamin increased whole‑blood biotin + improved metabolic antioxidant markers — demonstrates improved biotin status and metabolic effects (multi‑nutrient).

PubMed ID: 25122647

Human study: pregnancy/lactation substantially increased biotin turnover and catabolite excretion — direct evidence of altered biotin metabolism and requirements.

PubMed ID: 35439754

PPN containing multivitamins (including biotin) maintained blood vitamin concentrations postoperatively; directly demonstrates improved nutrient repletion/availability vs standard PPN.

PubMed ID: 11815321

Direct randomized supplementation (300 µg/day) in pregnancy produced large, specific improvements in sensitive biochemical markers of biotin status (3‑HIA lowered, urinary biotin ↑).

PubMed ID: 16677798

Randomized 28‑day human trial showed significant reductions in triacylglycerol and VLDL after pharmacological biotin dosing — direct human metabolic effects.

PubMed ID: 25122647

Pregnancy/lactation changed biotin turnover & metabolites substantially — direct evidence of altered biotin‑dependent metabolism and increased requirements.

PubMed ID: 25300112

Vitamin‑mineral complex improved glycemia and vitamin/mineral levels during weight loss — evidence of improved metabolic handling (contains biotin).

PubMed ID: 22151477

Multivitamin increased whole‑blood biotin and GSH — demonstrates improved metabolic antioxidant status and biotin markers (multi‑nutrient study).

PubMed ID: 23281759

Dietary biotin dose‑dependently improved growth/performance in ducklings, consistent with metabolic role in that species.

PubMed ID: 7556044

Stallion double‑blind trial: 20 mg/day biotin improved hoof horn quality and growth over months — strong keratin growth evidence in animals.

PubMed ID: 35791704

Weekly intramuscular biotin plus dexpanthenol improved hair count and density vs baseline—strong, product‑level evidence implicating biotin in hair outcomes (but combined treatment confounded).

PubMed ID: 31344296

Strong direct human evidence: addition of oral biotin to topical treatment increased the proportion of patients achieving ≥50% reduction in brittle nail severity (80% vs 53%).

PubMed ID: 27080201

High biotin in broilers reduced footpad/hock lesions, indicating improved integument health in poultry.

PubMed ID: 23281759

In ducklings biotin dramatically reduced foot‑pad dermatitis, a direct skin/epidermal benefit in this species.

PubMed ID: 23281759

Supplemental biotin increased growth/weight gain in ducklings, indicating weight‑related effects in that species.

PubMed ID: 27080201

Very high dietary biotin improved broiler growth performance; relevant to weight gain/efficiency in poultry.

PubMed ID: 17506119

Large randomized trial of chromium+picolinate plus biotin (90 d) produced clinically meaningful HbA1c and fasting glucose reductions — supports improved glycemic stability though effect cannot be attributed to biotin alone.

PubMed ID: 17684468

Large 90‑day chromium+biotin trial improved HbA1c/glucose (some subgroup lipid effects) — supports glycemic/energy stability but is a combined intervention.

PubMed ID: 27589059

Randomized trial of high‑dose biotin (MD1003) produced confirmed disability improvement in a subset of progressive MS patients — strong clinical neurologic signal.

PubMed ID: 40270284

2‑iminobiotin (a pharmacologic biotin analogue) in stroke patients was associated with lower mortality in a small RCT—suggests a neuroprotective potential for a biotin analogue (not nutritional biotin).

PubMed ID: 32211800

Observational study found many Cambodian mothers’ breast milk had vitamin levels (including biotin) below infant Adequate Intakes—strong evidence for concern and rationale for prenatal/perinatal support.

PubMed ID: 11815321

Short‑course biotin in pregnant women markedly reduced urinary 3‑HIA (a sensitive biochemical marker of biotin deficiency) and greatly increased urinary biotin—strong direct prenatal biomarker evidence.

PubMed ID: 25122647

Human controlled feeding study demonstrated increased biotin turnover and excretion during pregnancy and lactation, indicating higher biotin needs in these states.

PubMed ID: 35439754

Postoperative PPN with multivitamins (including biotin) preserved blood vitamin levels versus control—directly relevant to supporting postoperative tissue repair via nutrient sufficiency.

PubMed ID: 16018750

Randomized trial of a B‑vitamin formula (contains biotin) showed modest improvement in clinical attachment level after periodontal surgery — suggests support for tissue repair though effect cannot be isolated to biotin.

PubMed ID: 7556044

Stallion RCT: improved hoof quality with daily biotin — demonstrates clear functional benefit in animals relevant to keratin wellness.

PubMed ID: 25122647

Pregnancy/lactation study: major changes in biotin turnover and metabolites — relevant to ensuring adequate biotin for maternal/infant wellness.

PubMed ID: 31627309

12‑week randomized human trial of a multi‑ingredient collagen/dermonutrient supplement (including biotin) produced marked improvements in skin hydration, elasticity and roughness — however biotin was one of several actives, so attribution is uncertain.

PubMed ID: 35791704

Randomized, double‑blind human trial of intramuscular biotin+dexpanthenol showed significant reduction in hair fall count and increased hair density — direct clinical hair shedding evidence though combined treatment confounds pure biotin attribution.

PubMed ID: 35791704

Biotin+dexpanthenol injections improved hair density and reduced hair fall—likely to reflect healthier scalp/hair environment though scalp endpoints not directly measured.

PubMed ID: 16677798

Direct human biotin supplementation for 4 weeks produced significant reductions in triglycerides and VLDL — strong direct evidence for effects on fat metabolism.