Can collagen peptides help build muscle and lose fat?
The Influence of Specific Bioactive Collagen Peptides on Body Composition and Muscle Strength in Middle-Aged, Untrained Men: A Randomized Controlled Trial
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Men did strength training for 12 weeks and took either collagen peptides, whey protein, or a placebo. The collagen group gained more muscle and lost more fat than the placebo group. Whey protein worked about the same as collagen. Strength and waist size didn’t change much more with collagen.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 563 / 90
Evidence Score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Men did strength training for 12 weeks and took either collagen peptides, whey protein, or a placebo. The collagen group gained more muscle and lost more fat than the placebo group. Whey protein worked about the same as collagen. Strength and waist size didn’t change much more with collagen.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 563 / 90
Evidence Score
Participants are randomly assigned to treatment or control groups, minimizing bias. Considered the gold standard for testing whether an intervention causes an effect.
Publication
Authors
Zdzieblik D, Jendricke P, Oesser S, Gollhofer A, König D
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Claims (9)
Peptides marketed for fat loss often lack robust human evidence, relying instead on animal data or short-term biomarkers without long-term clinical validation.
Middle-aged men doing strength training and taking this collagen supplement build 1.6 kg more muscle than those taking a placebo.
Middle-aged men doing strength training and taking this collagen supplement lose 1.9 kg more body fat than those taking a placebo.
For middle-aged men doing strength training, whey protein and this collagen supplement have similar effects on muscle gain and fat loss.
Strength training with this collagen supplement doesn't make middle-aged men significantly stronger in leg presses than taking a placebo.