National Center for Complementary and Integrative Health (NCCIH)
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Collage of images displaying Carrots, Tomatos, Grains, Citrus, Tea, and Nuts.

© iStockphoto / (credits, top to bottom) felinda / RedHelga / kcline / IBushuev / grafvision / Fotografiabasica

Antioxidants are substances that may prevent potentially disease-producing cell damage that can result from natural bodily processes and from exposure to certain chemicals. Examples of antioxidants include anthocyanins, beta-carotene, catechins, coenzyme Q10, flavonoids, lipoic acid, lutein, lycopene, selenium, and vitamins C and E. There are a number of different antioxidants found in foods and available as dietary supplements.

This page last modified January 11, 2016