Taking multivitamins, vitamin C, vitamin E, and folate does not reduce the risk of lung cancer, according to a study in the March 1 issue of the American Journal of Respiratory and Critical Care Medicine. In a 10-year study of 77,721 men and women ages 50-76, 521 people developed lung cancer. Through detailed questionnaires given to participants on supplement use, diet, medical history, and other factors, researchers found no protective effect among any of the vitamins studied--and in fact, taking vitamin E was associated with a small increased risk of lung cancer in people who smoked.
The doses of vitamins participants took ranged from 2.8-5.6 pills a week for multivitamins, 60-322 mg daily for vitamin C, 42-215 mg daily for vitamin E, and 200-400 mcg daily for folate. The researchers say supplements should not be taken as a means to prevent lung cancer.
The doses of vitamins participants took ranged from 2.8-5.6 pills a week for multivitamins, 60-322 mg daily for vitamin C, 42-215 mg daily for vitamin E, and 200-400 mcg daily for folate. The researchers say supplements should not be taken as a means to prevent lung cancer.
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