Study: Vitamin B does not appear to help stroke victims

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In a two-year study of 3,700 stoke patients aged 66 on average, researchers found that a high dose vitamin B treatment does not lower the risk of a recurring stroke, a study in Wednesday's Journal of the American Medical Association found.

Though the higher levels of vitamin B lowered homocysteine in the patients' blood by a quarter, about 8% of the patients in both groups had another stroke during the two years. Studies have suggested that high levels of homocysteine raise the risk of heart attacks and strokes.

Wake Forest University neurologist Dr. James Toole, lead author, said the results were surprising.

American Stroke Association spokesman Dr. Mark Alberts said the study might have been too short to see lasting effects from reducing homocysteine levels.