Resveratrol is the celebrated polyphenol most associated with red wine and the so-called “French paradox”, though it is the grapes, rather than the alcohol, that supply it. Produced in the skins of grapes and in peanuts as a defence against fungal attack, it occurs in food only in tiny amounts, which is why supplements use far higher doses than any glass could provide. Studied largely for the heart and blood vessels, resveratrol has become one of the most researched, and most hyped, of all the plant compounds.
What is Resveratrol?
Resveratrol is a polyphenol that plays a critical role in protecting the grape vine against fungal infection and, in the body, in supporting the lining of the blood vessels. While many general diets overlook it, maintaining optimal levels of Resveratrol is frequently tracked by people working to optimize their Heart & vascular health.
Top Foods High in Resveratrol
A data-driven breakdown of the foods with the highest concentration of Resveratrol per 100 g.
| Food | Resveratrol |
|---|---|
| Grapes | 0.2 mg |
| Peanut Butter | 0.07 mg |
How Resveratrol Impacts Heart & vascular health
Research links diets rich in Resveratrol to changes in Heart & vascular health. Optimizing intake of these foods can support healthy Heart & vascular health levels via helping the artery lining release more nitric oxide, the signalling molecule that relaxes and widens blood vessels and improves their flexibility.
Scientific references & clinical evidence
This guide is built on peer-reviewed research — verify the primary sources below.
Written by the Nutrition Encyclopedia team · medically reviewed by Dr. Sunaina Tariq, MBBS
Last updated 22 June 2026
How we source & verify data · Medical disclaimer
Nutrition values are approximations compiled from public food-composition databases (USDA FoodData Central) and are provided for educational purposes only — not medical advice.
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