I used to take a 400iu supplement of vitamin E a day and my M.D. said to lose the supplement because some research suggests a link between high doses and cancer. I told her about research that I read here on the Alzheimer's site:
click here for the article that says vitamin E can help with prevention of Alzheimer's. Since my Mother's family has a high rate of Alzheimer's, I'll stick with the vitamin E. She understood and said at least I am making an informed choice. But I have reduced the amount I take to 200iu, just to compromise.