Vitamin B deficiency could result in cognitive impairment, according to new research published in Proceedings of the National Academy of Sciences.
Researchers from the Jean Mayer USDA Human Nutrition Research Centre on Ageing (HNRCA) at Tufts University found that mice given a diet which was deficient in three B-vitamins showed cognitive dysfunction as well as reductions in both brain capillary length and density.
The mice deficient in B-vitamins took longer to perform tasks such as navigating a water maze.
Dr Aron Troen, lead author of the study and assistant professor at Tufts University's Friedman School of Nutrition Science and Policy, commented: "Mice fed a diet deficient in folate and vitamins B12 and B6 demonstrated significant deficits in spatial learning and memory compared with normal mice."
Meanwhile, a separate study has suggested that regular walking could have a positive effect for people with memory problems.
A study published in the Journal of the American Medical Association suggested that individuals aged over 50 who go walking for over two-and-a-half hours a week can see significant improvements in memory problems.
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