Selenium is a mineral needed by the body to make the powerful antioxidant enzyme glutathione peroxidase. Glutathione peroxidase detoxifies products of oxidized fats. Selenium also works synergistically with Vitamin E to improve its antioxidant potential. Men appear to have a greater need for selenium since half of their bodies' supply is concentrated in the prostate and seminal ducts located next to this important gland. Available in 60 and 120 tablets.