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| In brief Mon, 19 May 2008 10:20 EDT STUDY: VITAMIN E WON'T PREVENT CATARACTS Many studies have suggested that vitamin E supplements help prevent cataracts. But a large 10-year randomized trial, the longest to date, has found no difference in cataract formation between those who took vitamin E and those who did not. The study, in the May issue of Ophthalmology, included 37,675 women without an initial diagnosis of cataracts. Half took 600 international units of vitamin E on alternate days; the rest took a placebo. At the end of the study, there was no difference in the number of cataracts between the groups and no difference in the types of cataracts they developed. "Although observational data tend to suggest benefits for vitamin E," said William G. Christen, the lead author and an associate professor of medicine at Brigham and Women's Hospital, "data from this more rigorous randomized 10-year trial suggest little benefit." |
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