Understanding the New Research on Antioxidant Supplements

Clinical studies on antioxidant supplements have been mixed, with some finding benefits and others finding no benefits.

Antioxidant supplements have been popular in the U.S. for decades, especially among athletes. Early laboratory studies on their chemical properties suggested that they might help neutralize harmful chemicals called free radicals that are produced in the body as a part of normal cellular metabolism, and in response to environmental pollution. Oxidative damage caused by free radicals is thought to accelerate the aging process and artery disease, and to be potentially carcinogenic.

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