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How does the body fight free radicals to prevent cancer?

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The body's cells have a natural defense strategy against free radicals and are able to repair the damage caused by them. However antioxidants, such as selenium and beta-carotene, may help reinforce this protection. However, in clinical trials, neither of these agents has been shown to reduce cancer development. Studies have shown that antioxidants are best taken as foods as opposed to supplements. Some examples of antioxidants are carotene, beta-carotene, and lutein. Foods that are good sources of antioxidants include fruits, vegetables, and certain types of tea.

SOURCE: 

American Cancer Society. Uptodate.com: “Patient information: High-fiber diet (Beyond the Basics),” Arnold Wald, MD.  



Reviewed by Laura J. Martin on July 10, 2018

SOURCE: 

American Cancer Society. Uptodate.com: “Patient information: High-fiber diet (Beyond the Basics),” Arnold Wald, MD.  



Reviewed by Laura J. Martin on July 10, 2018

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How does folic acid prevent cancer?

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