Antioxidant. Definition

Medical Definition: Antioxidant

Heterogeneous group of substances consisting of vitamins, minerals, natural pigments and other plant compounds and enzymes that block the damaging effects of free radicals. The term means that prevents harmful oxidation of other chemicals. Protects cells from damage caused by free radicals (unstable molecules produced by oxidation during normal metabolism). Free radicals may be partly responsible for cancer, heart disease, stroke and other diseases of aging. Among the antioxidants are beta carotene, lycopene, vitamins A, C and E and other natural and manufactured.

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