Low B12 tied to faster mental decline with age

Low B12 tied to faster mental decline with age - Yahoo! News
2007.11.26
"...Among a group of men and women aged 65 and older, those whose levels of two B12 activity markers indicated higher blood levels of the vitamin had a slower drop-off in cognitive function over 10 years than their peers...The researchers checked levels of the biologically active portion of vitamin B12, holotranscobalamin, as well as methylmalonic acid, a marker for B12 function. Testing for B12 itself has a "poor predictive value," they note...doubling a person's vitamin B12 levels by taking oral supplements could slow cognitive decline by one third..."

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