Resveratrol in red wine

Resveratrol might help prevent damage to blood vessels, lower low-density lipoprotein (LDL) cholesterol, also called the "bad" cholesterol, and prevent blood clots.

But study results on resveratrol are mixed. Some research shows that resveratrol could be linked to a lower risk of swelling and irritation, called inflammation, and blood clotting. Both can lower the risk of heart disease.

But other studies have found that resveratrol does not protect against heart disease. More research is needed.