Polyphenols are a group of chemicals found in many fruits, vegetables, and other plants, such as berries, walnuts, olives, tea leaves and grapes. They are classified as antioxidants, meaning that they remove free radicals from the body. Free radicals are chemicals that have the potential to cause damage to cells and tissues in the body.
Polyphenols have been found to possess a variety of potential health benefits, including cancer prevention and reducing the risk of getting heart disease. Some studies have also found that polyphenols lower LDL cholesterol, or “bad” cholesterol, in the body.