Oxidation is the process by which most elements are broken down and returned to the earth. Antioxidants slow or prevent the oxidation process. In living organisms they literally stop the process of rotting from the inside out. Some antioxidant vitamins are A,C and E.

Antioxidants stop cancer by binding free radicals. Free radicals are naturally produced in the body through the normal metabolism of amino acids and fats. These free radicals are unstable molecules that can freely react with and destroy healthy cells. They can bind to and alter the structure of DNA thus leading to mutations and eventually to cancer.