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Will high doses of antioxidant supplements also prevent disease?

Interestingly, high doses of antioxidant supplements may actually increase health risks. High antioxidant supplement use can lower the efficiency of some chemotherapy drugs. This is because chemotherapy drugs cause the formation of free radicals, and antioxidants mop these free radicals up before they can target and kill cancerous cells. Supplementation with beta-carotene can increase the risk of lung cancer in people who smoke. Research also suggests that there is also no benefit of antioxidant supplements vitamin E or beta-carotene for preventing age-related macular degeneration.12110

Author: Bow Tauro
First answered: 06 Nov 2014
Last reviewed: 19 May 2018
Rating: 5.0/5 Votes: 1288

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