Friday, November 2, 2007

more about antioxidants

Antioxidants are substances that may protect cells from the damage caused by unstable molecules known as free radicals Antioxidants interact with and stabilize free radicals and may prevent some of the damage free radicals otherwise might cause. Antioxidant is a classification of several organic substances, including vitamins C and E, vitamin A (which is converted from beta-carotene), selenium (a mineral), and a group known as the carotenoids. Antioxidants neutralize free radicals as the natural by-product of normal cell processes. Free radicals are molecules with incomplete electron shells which make them more chemically reactive than those with complete electron shells. Exposure to various environmental factors, such as tobacco smoke, pollution and radiation, can also lead to free radical formation. In humans, the most common form of free radicals is oxygen. When an oxygen molecule (O2) becomes electrically charged it tries to steal electrons from other molecules, causing damage to the DNA and other molecules. Over time, such damage may become irreversible and lead to disease including cancer. Eye Combo from Nepatica is a excellent source of antioxidants, the ingredients are 400 mg of Bilberry 100 mg Ginkgo Biloba, 100mg Grape Seed Extract, 100 mg Tomato and 5 mg Lutein.

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