Vitamin B may protect against Alzheimer's disease

LOS ANGELES

Researchers looked at data from a 2010 clinical trial and found that B vitamins could cut brain shrinkage in half for older people with memory problems.

The rates of total brain shrinkage were slower in patients taking vitamin B who had high levels of the amino acid homocysteine in their blood.

The study is in the journal proceedings of the National Academy of Sciences.

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