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New research by Oxford University shows that taking B vitamins won't prevent Alzheimer's disease.
Results of a trial show they don't slow the rate of mental decline but will also hold no adverse effects.
Sangeeta spoke to Professor Dr Robert Clarke from Oxford University
Taking B vitamins won't prevent Alzheimer's disease according to researchers at Oxford University. One trial undertaken four years ago showed - for some - it had an effect on the rate of brain shrinkage.
But new clinical trials involving 20,000 people show it doesn't slow mental decline nor is it likely to prevent the disease.Dr Robert Clarke from Oxford University who led the work said: "It would have been nice to have found something different
"Our study draws a line under the debate: B vitamins don't reduce cognitive decline as we age. Taking folic acid and vitamin B-12 is sadly not going to prevent Alzheimer's disease."
He added " It's better to have a balanced diet - eat more fruit and vegetables, avoid too much red meat and too many calories."
The study was funded by the British Heart Foundation, the UK Medical Research Council, Cancer Research UK, the UK Food Standards Agency and the Department of Health. The findings are published in the American Journal of Clinical Nutrition.