Antioxidants play an essential role in preventing disease by combatting oxidative stress in the body. These compounds, found in fruits, vegetables, nuts, and whole grains, neutralize harmful free radicals that can damage cells and lead to chronic illnesses like cancer and heart disease. By reducing oxidative damage, antioxidants contribute to overall cellular health and longevity. They work synergistically with various vitamins and minerals, enhancing the body's defense mechanisms. Including a variety of antioxidant-rich foods in the diet is crucial for sustaining health and reducing the risk of age-related diseases.