Resveratrol in grapes, supplements and other foods

The resveratrol in red wine comes from the skin of grapes used to make wine. 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 pluses of red wine.

Peanuts, blueberries and cranberries also have some resveratrol. It's not yet known whether eating grapes or other foods promotes heart health the way drinking red wine might. And it's not known how much resveratrol is needed to protect the heart. The amount of resveratrol in food and red wine can vary widely.

There also are resveratrol supplements. However, they might cause side effects. And research suggests that the body can't absorb most of the resveratrol in supplements.