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Study breakdown

Collagen Peptide Drinks Boost GLP-1 and Insulin While Suppressing Ghrelin in Both Normal and Obese People

Clinical TrialModerate evidence
The takeaway

Oral gelatin hydrolysate increased postprandial GLP-1, insulin, and glucagon while suppressing ghrelin in both normal and obese subjects — collagen peptides trigger satiety hormones beyond their protein content.

Key finding

Oral gelatin hydrolysate meals stimulated GLP-1, insulin, and glucagon release while suppressing ghrelin in both normal weight and obese subjects, dem

What the researchers found

Oral gelatin hydrolysate meals stimulated GLP-1, insulin, and glucagon release while suppressing ghrelin in both normal weight and obese subjects, demonstrating collagen peptides trigger satiety hormone responses beyond simple protein-mediated effects.

Why it matters

Relevant for collagen-peptides, neuropeptides, weight-loss.

How the study worked

clinical-trial study.

What this study cannot tell us

See abstract.

How to read the evidence

moderate evidence.

When this study was published

Published in 2008.

The bigger picture

Advances peptide research.

Questions still open

  • Further research needed.
  • Clinical translation to evaluate.

Common questions

What was studied?
Collagen Peptide Drinks Boost GLP-1 and Insulin While Suppressing Ghrelin in Both Normal and Obese People
What was found?
Oral gelatin hydrolysate increased postprandial GLP-1, insulin, and glucagon while suppressing ghrelin in both normal and obese subjects — collagen peptides trigger satiety hormones beyond their protein content.

Read the original research

Oral ingestion of a hydrolyzed gelatin meal in subjects with normal weight and in obese patients: Postprandial effect on circulating gut peptides, glucose and insulin.

Eating and weight disorders : EWD, 13(1), 48-53

Citation

Rubio, I G; Castro, G; Zanini, A C; Medeiros-Neto, G. (2008). Oral ingestion of a hydrolyzed gelatin meal in subjects with normal weight and in obese patients: Postprandial effect on circulating gut peptides, glucose and insulin.. Eating and weight disorders : EWD, 13(1), 48-53.