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Vitamin B may lower stroke risk
September 19th, 2013
02:33 PM ET

Vitamin B may lower stroke risk

New evidence suggests taking vitamin B supplements may help reduce the risk of stroke.

A study, published this week in the online issue of Neurology, analyzed 14 randomized clinical trials of vitamin B that included a total of 54,913 participants. All of the studies compared the supplement use with a placebo or a very low-dose B vitamin. The patients were then followed for a minimum of six months.

The purpose of this meta-analysis was to see if vitamin B lowered homocysteine levels in the blood, which are associated with atherosclerosis (hardening and narrowing of the arteries), as well as an increased risk of heart attacks, strokes, blood clot formation and possibly Alzheimer's disease.

"Previous studies have conflicting findings regarding the use of vitamin B supplements and stroke or heart attack," said study author Dr. Xu Yuming, with Zhengzhou University in Zhengzhou, China. "Some studies have even suggested that the supplements may increase the risk of these events."
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