Vitamin B12
Recent studies suggest an association between low Vitamin B12 levels and elevated homocysteine levels, which leads to cognitive impairment (dementia)1-5. Elevated homocysteine concentrations contribute to cognitive impairment by causing atrophy (shrinking) of the brain1-2. Studies suggest that supplementation of Vitamin B12 can both prevent this type of incident dementia and may even help reverse it1-2. One recent study showed that both low concentrations of Folate ( Vitamin B9) and Vitamin B12 were associated with twice the risk of developing Alzheimer's disease6.
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