Resveratrol

Resveratrol is found in the skin of red grapes, blueberries, peanuts, pistachios, cocoa, dark chocolate, and red wine. It is a potent antioxidant, and vasodilator, expanding blood vessels and decreasing pain and swelling. It is used for atherosclerosis, lowering "bad" (LDL)  and increasing “good” (HDL) cholesterol.