Could collagen supplements tame blood sugar spikes?

NCT ID NCT05887791

Completed Disease control Sponsor: Rousselot BVBA Source: ClinicalTrials.gov ↗

First seen Jul 20, 2026 · Last updated Jul 21, 2026 · Updated 1 time

Summary

This study investigates whether a single dose of collagen hydrolysate, a dietary supplement, can reduce the rise in blood sugar and insulin after a meal. Researchers are testing two different doses in both prediabetic and healthy adults. The trial uses a double-blind, placebo-controlled, crossover design, meaning each participant receives both the supplement and a placebo at different times, and neither they nor the researchers know which is which.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: collagen hydrolysate (a dietary supplement derived from collagen)
What this could lead to: If it works, this could point toward a simple dietary supplement to help manage blood sugar after meals, potentially aiding prediabetes management.
What could go wrong: This is a small, early-stage trial with only 16 participants, so results may not apply broadly. The effect may be small or not clinically meaningful.

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Conditions

The condition(s) this trial relates to.

prediabetes syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

HEALTHY PREDIABETIC STATE

Contacts and locations

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Locations

BioTeSys GmbH

Esslingen am Neckar, 73728, Germany

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