Wine grape leftovers could be a Heart-Healthy superfood

NCT ID NCT06476795

Recruiting now Disease control Sponsor: University of California, Davis Source: ClinicalTrials.gov ↗

First seen Aug 07, 2026 · Last updated Aug 07, 2026

Summary

This pilot study tests whether adding powder made from Chardonnay grape skins and seeds to the daily diet can improve gut and heart health. The study includes postmenopausal women aged 45-70 with excess weight and high triglycerides. Participants will consume the powder daily, and researchers will measure markers like blood vessel function, cholesterol, blood sugar, and gut-related compounds. The goal is to see if this wine byproduct could be a practical source of beneficial flavanols and fiber.

What this could mean

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

Active substance: Chardonnay marc powder (dried skins and seeds of Chardonnay grapes)
What this could lead to: If this works, it could point toward a simple dietary addition that supports heart and gut health in at-risk women.
What could go wrong: This is a very small pilot study with only 5 participants, so results may not apply broadly. The effects on cholesterol, blood sugar, and inflammation are uncertain.

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

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Conditions

The condition(s) this trial relates to.

abdominal obesity-metabolic syndrome cardiovascular disorder metabolic syndrome X Obesity obesity disorder

As listed by the trial registrant

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

ADIPOSITY CARDIOMETABOLIC SYNDROME CARDIOVASCULAR DISEASES

Contacts and locations

Locations

University of California, Davis
RECRUITING

Davis, California, 95616, United States

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