Resveratrol is a stilbenoid, a type of natural phenol, and a phytoalexin produced by several plants in response to injury or when the plant is under attack by pathogens, such as bacteria or fungi. Sources of resveratrol in food include the skin of grapes, blueberries, raspberries, mulberries, and peanuts.

Resveratrol supplements may help lower blood pressure by increasing the production of nitric oxide.

Resveratrol supplements may benefit blood fats in animals. As an antioxidant, they may also decrease LDL cholesterol odixation.

A potent antioxidant and anti-inflammatory compound, resveratrol shows promise in protecting brain cells from damage.

Resveratrol has helped mice develop better insulin sensitivity and fight complications of diabetes. In the future, humans with diabetes might also benefit from resveratrol therapy.

Resveratrol may help relieve joint pain by preventing cartilage from breaking down.

Resveratrol has shown exciting cancer-blocking activity in test tubes and animal studies.