Resveratrol in grapes, supplements and other foods

The resveratrol in red wine comes from the skin of grapes used to make wine. Because red wine is fermented with grape skins longer than white wine, red wine contains more resveratrol.

Simply eating grapes or drinking grape juice might be a way to get resveratrol without drinking alcohol. Red and purple grape juices may have some of the same heart-healthy benefits of red wine.

Peanuts, blueberries and cranberries also contain some resveratrol. It's not yet known how beneficial eating grapes or other foods might be compared with drinking red wine when it comes to promoting heart health. The amount of resveratrol in food and red wine can vary widely.

Resveratrol supplements also are available. Researchers haven't found any harm in taking resveratrol supplements, but your body can't absorb most of the resveratrol in supplements.