Could a Milk-Sugar supplement boost your gut bacteria?

NCT ID NCT06615986

Recruiting now Knowledge-focused Sponsor: National Heart, Lung, and Blood Institute (NHLBI) Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a daily supplement called Cardiosyn can increase helpful gut bacteria in healthy adults who eat a typical Western diet. The supplement contains a natural sugar found in human milk along with probiotics. One hundred participants will take the powder for about 8 weeks, and researchers will measure changes in their gut bacteria and blood markers.

What this could mean

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

Active substance: Cardiosyn (a synbiotic dietary supplement containing human milk oligosaccharides and probiotics)
What this could lead to: If it works, this could point toward a simple supplement to improve gut health and reduce heart disease risk in healthy people.
What could go wrong: This is a very early, small study in healthy volunteers, so results may not apply to people with illnesses. The supplement may cause digestive discomfort or show no clear benefit.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

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

HEALTHY VOLUNTEERS

Contacts and locations

Locations

National Institutes of Health Clinical Center
RECRUITING

Bethesda, Maryland, 20892, United States

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