 Dietary polyphenols are compounds found in many foods, such as grains, cereals, pulses, vegetables, spices, fruits, chocolate and beverages like fruit juice, tea, coffee and wine. Recent studies have shown that these compounds may help protect against oxidative stress, which can lead to a variety of diseases. Polyphenols have been linked with reduced risk of developing certain types of cancer, heart disease, diabetes, and other diseases. They also have anti-inflammatory properties, which can help reduce inflammation associated with some diseases. This article was authored by Mathun Ridripul, Shubham Jay Karanar, Jorakon, and others.