I listened to NPR talk about this study yesterday. They explained that men taking a normal does of Vitamin E are NOT at a higher risk for prostate cancer. Men taking what they described as a "mega dose" are. The conclusion is don't take more than the recommended amount, vitamins can be harmful if you take too much. Don't do that.
Exactly. When starting any supplement, it's worth spending ten minutes to look up what conventional (read: conservative, which is exactly what you want here) medicine considers the maximum daily dose, side effects, overdose symptoms, and toxicity levels.