People who supplement with B vitamins that lower homocysteine levels lower their risk for stroke, according to a meta-analysis from Zhengzhou University in China. Researchers analyzed the findings from 14 clinical trials that included a total of almost 55,000 people, comparing B vitamin supplements with placebos. Results showed that B vitamin supplementation was associated with reduced homocysteine levels that lowered the risk of stroke by 7%.
Yan J, Song T, Yuming X, et al: Vitamin B supplementation, homocysteine levels, and the risk of cerebrovascular disease. Neurology 2013;81:1298-1307.