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Learn more about phytonutrients and how they play a role in your overall health. Vegetables and fruits are rich sources of phytonutrients, including antioxidants.

USDA, Agricultural Research Service, Nutrient Data Laboratory

View common foods and their phytonutrient content using these five databases.

HHS, National Institutes of Health, National Cancer Institute

Find out more about antioxidants and their role in cancer prevention, including research study summaries.

HHS, National Institutes of Health, National Center for Complementary and Integrative Health

This fact sheet provides basic information about antioxidants, summarizes what the science says about antioxidants and health, and suggests sources for additional information.

HHS, National Institutes of Health, National Library of Medicine, MedlinePlus Health Information

Find the latest news, plus links to overviews, clinical trials and research related to dietary antioxidants. 

Produce for Better Health Foundation

Learn about phytonutrients: some other common names, how to get them in your diet, and their health benefits.