Polyphenolic refers to a group of organic compounds that contain multiple phenol units. Phenols are chemical compounds containing one or more hydroxyl groups attached to an aromatic ring, such as in benzene. Polyphenolics can be found in various natural sources like plants and fruits, where they act as antioxidants, protecting the plant from environmental stressors. They also have several health benefits for humans when consumed in moderation, including reducing inflammation and improving heart health.