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Gelatin and Collagen Peptides

The differences between gelatin and collagen peptides, including their absorption, texture, and timing, and their effects on appetite hormones and energy intake.

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Jan 19, 2026

Are there peer‑reviewed studies on gelatin or collagen supplements and appetite control or weight loss?

Yes — there are peer‑reviewed human studies and randomized trials testing gelatin or collagen (often labelled collagen peptides or hydrolysed gelatin) for effects on appetite regulation and body compo...