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Megavitamin therapy is the use of large doses of vitamins, often many times greater than the recommended dietary allowance (RDA) in the attempt to prevent or treat diseases. Megavitamin therapy is typically used in alternative medicine by practitioners who call their approach orthomolecular medicine . [ 1 ]
Beta-carotene may also increase lung cancer. [157] [158] Overall, the large number of clinical trials carried out on antioxidant supplements suggest that either these products have no effect on health, or that they cause a small increase in mortality in elderly or vulnerable populations. [138] [159] [153]
Cancer prevention is the practice of taking active measures to decrease the incidence of cancer and mortality. [ 1 ] [ 2 ] The practice of prevention depends on both individual efforts to improve lifestyle and seek preventive screening , and socioeconomic or public policy related to cancer prevention. [ 3 ]
An inverse relationship between dietary vitamin E and lung cancer was reported in observational studies, [72] but a large clinical trial in male tobacco smokers reported no impact on lung cancer between treatment and placebo, [73] and a trial which tracked people who chose to consume a vitamin E dietary supplement reported an increased risk of ...
Vitamin C megadosage is a term describing the consumption or injection of vitamin C (ascorbic acid) in doses well beyond the current United States Recommended Dietary Allowance of 90 milligrams per day, and often well beyond the tolerable upper intake level of 2,000 milligrams per day. [1]
New lung cancer screening guidelines issued by the American Cancer Society (ACS) on Wednesday call for annual testing with low‐dose computed tomography (CT) for anyone aged 50 to 80 who was ...