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Vitamin B With Folic Acid Does Not Prevent Or Improve Memory Loss

November 12, 2014: 12:00 AM EST
Dutch researchers have determined that, despite earlier observational studies, taking folic acid and vitamin B12 over long periods of time does not reduce the risk of memory loss. The study was conducted in 2,919 older patients with high levels of the amino acid homocysteine – thought to be associated with memory loss. Folic acid and vitamin B12 do lower homocysteine levels, but after two years of supplementation the researchers found no difference between the patients who took supplements and those who took a placebo in the scores on thinking and memory tests.
N. L. van der Zwaluw et al., "Results of 2-year vitamin B treatment on cognitive performance: Secondary data from an RCT. ", Neurology, November 12, 2014, © American Academy of Neurology
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