The primary role of antioxidants in the body is to combat oxidative stress caused by harmful molecules called free radicals. These radicals can damage cells, proteins, and DNA, contributing to aging and various diseases, including cancer and heart disease. Antioxidants neutralize free radicals, thereby protecting cells and maintaining overall health. Sources of antioxidants include fruits, vegetables, nuts, and whole grains, which provide essential vitamins and minerals, such as vitamin C and vitamin E. Thus, incorporating foods rich in antioxidants is vital to supporting the body’s defense mechanisms against oxidative damage.