WASHINGTON (AP) -- The government is stopping a major study of whether vitamin E and selenium prevent prostate cancer -- because the supplements aren't working and there's a hint of risk.
More than 35,000 men age 50 and older have been taking either one or both supplements or dummy pills for several years. But the National Cancer Institute says they will be getting letters in the next few days telling them to stop. An early review of the data shows neither supplement, taken alone or together, is preventing prostate cancer.
Of more concern, slightly more users of vitamin E alone were getting prostate cancer -- and slightly more selenium-only users were getting diabetes. Either blip could be a coincidence.
(Copyright 2008 by The Associated Press. All Rights Reserved.)
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