Antioxidants play a vital role in the diet by protecting cells from damage caused by free radicals. These unstable molecules can result from normal metabolism or environmental factors like pollution and UV radiation. A diet rich in antioxidants, found in fruits, vegetables, nuts, and whole grains, can help mitigate oxidative stress, potentially reducing the risk of chronic diseases such as cancer, heart disease, and neurodegenerative disorders. The regular intake of antioxidants is an essential part of maintaining overall health and promoting long-term wellness.