Quercetin supplement tested to boost blood vessel health in obesity
NCT ID NCT06683534
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 2 trial tests whether quercetin, a dietary supplement found in many fruits and vegetables, can improve the function of tiny blood vessels in young adults with obesity. Forty participants will take either quercetin or a placebo daily for 30 days. Researchers will measure blood vessel dilation and density using a camera under the tongue and laser probes on the forearm.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- quercetin (dietary supplement)
- What this could lead to
- If it works, this could point toward a simple supplement to protect blood vessels in people with obesity.
- What could go wrong
- This is a small, early-phase trial with only 40 participants. The supplement may not improve blood vessel function, and results may not apply to everyone.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Froedtert Hospital
Wauwatosa, Wisconsin, 53226, United States
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