A chemical that reduces oxidation of cells. Antioxidants are produced by the body and obtained from dietary sources. Cells are oxidised when exposed to environmental (sunlight, pollution, smoking) free radicals (compounds that contain oxygen molecules). This oxidisation damages the cells’ components and can even cause cellular death. All living organisms have complex antioxidant systems to guard against this damage. Examples of antioxidants are vitamins A, C and E, flavonoids and coenzyme Q10.

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