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Livescience_2013 07209.txt

#Vitamin b Supplements May Reduce Stroke Risk Taking Vitamin b supplements may help reduce the risk of stroke a new review suggests. Researchers looked at 14 clinical trials involving nearly 50000 participants and found that people who took Vitamin b had a 7 percent decreased risk of stroke compared with people who took a placebo. However among those who did have strokes taking Vitamin b supplements did not appear to affect the severity of strokes or the risk of dying from a stroke according to the study published Sept. 18 in the journal Neurology. A number of factors may influence the ability of Vitamin b to reduce a person's stroke risk the researchers said. These factors include how well a person's body absorbs the vitamins the concentrations of vitamins in the blood and whether a person has kidney disease or high blood pressure said study researcher Dr. Xu Yuming a neurologist at Zhengzhou University in China. 7 Ways to Raise Your Risk of Stroke Before you begin taking any supplements you should always talk to your doctor Yuming said. In a stroke the blood supply to the brain is interrupted by a blood clot or the bursting of a blood vessel. Common risk factors for stroke include high blood pressure high cholesterol and smoking. However previous studies indicate that these risk factors explain only half of the risk for stroke the researchers said. Some studies have suggested that high levels of the amino acid homocysteine in the blood could potentially be a risk factor for vascular disease which prompted researchers to examine whether Vitamin b supplements could reduce homocysteine levels and in turn lower stroke risk. But such studies have mixed found results. Previous studies have conflicting findings regarding the use of Vitamin b supplements and stroke or heart attack Yuming said. Some studies have suggested even that the supplements may increase the risk of these events. B vitamins are important nutrients for the body. They can be found in a variety of foods including whole grains potatoes bananas beans and lentils. The American Cancer Society notes that while supplements containing B vitamins are thought generally to be safe they should not be taken in large doses. High doses of vitamin B3 (niacin can cause health problems including blurred vision nausea vomiting and high blood sugar. Email Bahar Gholipourâ or follow her@alterwired. Followâ Livescienceâ@livescience Facebookâ & Google+.+Original article on Livescience v

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