Dietary polyphenols are a group of naturally occurring compounds found in various fruits, vegetables, and other plant-based foods. They have antioxidant properties that can help protect cells from damage caused by free radicals. Some common dietary polyphenols include flavonoids, which give plants their bright colors; anthocyanins, also responsible for the color of fruits and vegetables; and tannins, found in tea leaves and wine grapes. Consuming a diet rich in dietary polyphenols has been associated with numerous health benefits such as reducing inflammation, improving heart health, and potentially preventing chronic diseases like cancer and Alzheimer's disease.