Active women ate less after collagen, without reporting less hunger
Compared with a taste-matched control, collagen peptides reduced energy eaten at a meal after cycling. Reported appetite did not differ, and the experiment covered a short supplementation period.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
In these active women, collagen supplementation reduced energy intake at the meal provided after exercise compared with the control condition. Participants did not report a corresponding difference in hunger or other appetite sensations. This short experiment addresses eating at a particular meal; it does not establish an effect on long-term eating patterns or body weight.
The abstract reports a short trial in healthy active women and a post-exercise meal outcome. It provides no evidence about sustained changes in energy intake, body weight, or other populations.
What researchers found
Meal energy intake
On day 7, at a meal offered 60 minutes after supplementation, intake was approximately 10% (approximately 41 kcal) lower with collagen than control; P = 0.037.
Eating and appetite gave different answers
The researchers recorded how much participants chose to eat and separately asked about appetite sensations. Meal intake fell with collagen, but subjective appetite and gastrointestinal symptoms showed no statistically clear differences between conditions throughout the trial.
Blood measurements are separate outcomes
Several measured hormone concentrations changed with collagen, while glucose and other hormone measurements did not differ clearly. These laboratory findings accompany the meal result; they do not establish longer-term health benefits or explain the unchanged appetite ratings.
The original publication
The effects of collagen peptide supplementation on appetite and post-exercise energy intake in females: a randomised controlled trial.
Reynolds KM, Hansell EJ, Thorley J et al.
Br J Nutr · 2025
- PubMed ID
- 40685650
- Record checked
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