Oxidation is a natural and necessary process in which cells are broken
down or converted to other forms. Although oxidation reactions are
crucial for life, too much can be damaging, and plants, animals, and
people maintain complex multiple antioxidant systems including
vitamins, minerals, enzymes, and dietary antioxidants. Pollution,
physical and mental stress, drugs, alcohol, and other chemicals
can increase oxidation. Excess oxidation creates free radicals that
are linked to age-related degenerative conditions, including vision
problems, heart disease, diabetes, osteoporosis, and Alzheimer’s
disease. It is wise to consume antioxidants from a wide variety of
sources to support overall health.
Selenium is a trace mineral and antioxidant which works with vitamin E
to prevent free radical damage to cell membranes. High incidence of
breast cancer and cardiovascular disease have been reported where
low levels of selenium are found in people’s diets.