Dietary antioxidants, found in fruits, vegetables, and whole grains, play a significant role in promoting overall health. They combat oxidative stress and reduce inflammation, which can lower the risk of chronic diseases such as heart disease and cancer. Antioxidants, including vitamins C and E, help protect cells from damage and support the immune system. Incorporating a variety of antioxidant-rich foods can enhance well-being and contribute to longevity by supporting cellular health.