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Antioxidants, such as vitamins C and E, selenium, and beta-carotene, play a crucial role in protecting cells from oxidative damage caused by free radicals. These free radicals, although natural byproducts of cellular metabolism, can contribute to the development of cardiovascular diseases, vascular disorders, and certain cancers when present in excess. A diet rich in fruits and vegetables, natural sources of antioxidants, is associated with a reduced risk of these diseases. However, the effectiveness of antioxidant supplements in disease prevention remains a subject of debate within the scientific community. It is important to note that excessive consumption of these supplements can sometimes be counterproductive and lead to adverse effects. Therefore, it is generally recommended to favor natural sources of antioxidants and to maintain a balanced diet and a healthy lifestyle.