The news: A recent Harvard study showed no benefit to the 14,641 men who took supplements for an average of eight years. In fact, men taking vitamin E had a 74 percent increased risk of stroke due to bleeding in the brain.
The hope: B vitamins would lower cancer risk.
The news: A combo of folic acid, B6, and B12 didn't prevent deadly cancer in middle-aged women. But there are hints that it may protect older women: Those at least 65 when the study started were 25 percent less likely to develop any kind of invasive cancer, and 38 percent less likely to be diagnosed with breast cancer.


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