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Evidence-Based Supplement Research

Evidence-Based Supplement Research

Collagen Protein and Increased Intestinal GLP-1 Levels

Doses used in studies

g/day: 15 (median 15, IQR 15–15) — 1 study

Time to effect

Median: 7 days · IQR 7 days–7 days · Range 7 days–7 days — Reported in 1 of 1 study

1 of 1 paper

The effects of collagen peptide supplementation on appetite and post-exercise energy intake in females: a randomised controlled trial.
- 2025-07-21
- RCT
- The British journal of nutrition 134(4)
- - Kirsty M Reynolds
  - Emily J Hansell
  - Josh Thorley
  - Mark P Funnell
  - Alice E Thackray
  - David J Stensel
  - Stephen J Bailey
  - Lewis J James
  - Janne Prawitt
  - Nicolina Virgilio
  - Tom Clifford
- PubMed: 40685650
- DOI: 10.1017/s0007114525103851
10 Insights on
- Increased Intestinal GLP-1 Levels
- High evidence
- Adults
Total plasma GLP-1 (AUC, CON: 6369 (sd 2330); CP: 9064 (sd 3021) pmol/l; P < 0·001) and insulin (+80 % at peak) were higher after CP (P < 0·001).
Effect
Beneficial
Effect size
Moderate
Significant
Yes
Dose
15 g/d