Antioxidants
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.
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This fact sheet provides a general overview of antioxidants—with a focus on dietary supplements—and suggests sources for additional information.
For Consumers
General Information
Research Spotlights
Ongoing Medical Studies
- Find Active Medical Research Studies on Antioxidant (ClinicalTrials.gov)
Safety Information
For Health Professionals
NCCIH Clinical Digest
Scientific Literature
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Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
