Antioxidants play a crucial role in diets by neutralizing free radicals, which can cause cellular damage and contribute to various chronic diseases. Rich sources of antioxidants include fruits, vegetables, nuts, and whole grains. Regular intake of antioxidants is associated with reduced inflammation and a lower risk of conditions such as heart disease, diabetes, and certain cancers. They also play a role in promoting skin health and slowing aging processes. A diverse diet rich in colorful, whole foods is beneficial for maximizing antioxidant intake.