The link between low B12 and early cognitive decline
Older people with low levels of vitamin B12 in their blood may be more
likely to develop problems with their thinking skills and have more
brain shrinkage, a new study suggests.
A growing body of research is drawing a link between low B12 and early
cognitive decline, a condition that often leads to dementia.
Previous research has found that those people with high levels of
vitamin B12 in their blood have lower levels of an amino acid called
homocysteine, which some studies have linked to an increased risk of
Alzheimer's disease, memory loss, and stroke.
This new study looked at 121 people over the age of 65 in Chicago.
Researchers analyzed their blood for levels of vitamin B12 and
B12-related metabolites that can indicate a B12 deficiency.
(Link to study: http://www.neurology.org/content/77/13/1276.full)
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