Are vitamins an effective tool in preventing cancer?

Watson, Traci
April 1994
U.S. News & World Report;4/25/94, Vol. 116 Issue 16, p80
Focuses on two studies that offer conflicting evidence on the benefits of fresh vegetables versus nutritional supplements. Study in `Proceedings of the National Academy of Sciences' which showed that rats dosed with a cancer-causing chemical were less likely to develop tumors if they also received a broccoli extract called sulforaphane; Report in the `New England Journal of Medicine' which found that smokers who took beta carotene actually had higher rates of lung cancer.


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