Daily tablets of large doses of B vitamins can halve the rate of brain shrinkage in elderly people with memory problems and may slow their progression toward dementia, data from a British trial showed on Wednesday,

B vitamins found to halve brain shrinkage in old

Scientists from Oxford University said their two-year clinical trial was the largest to date into the effect of B vitamins on so-called "mild cognitive impairment" - a major risk factor for Alzheimer's disease and other forms of dementia.

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Vitamin B could put off Alzheimer's: study

Large daily doses of B vitamins could halve the rate of brain shrinkage in elderly people with warning signs of Alzheimer's, potentially delaying the onset of the disease, a study suggested Thursday.

Vitamin B 'could delay Alzheimer's onset'

Large daily doses of B vitamins could delay -- or even halt -- the onset of Alzheimer's disease, a study suggested Thursday.