Meeting the minimum requirement for vitamin B12, needed to make DNA, red blood cells and nerve tissue, may not actually be enough – particularly if you are older. It may even put you at risk for cognitive impairment. A new study, led by UC San Francisco researchers, found that older, healthy volunteers, with lower concentrations of B12, but still in the normal range, showed signs of neurological and cognitive deficiency.
[Source: ucsf.edu]
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February 28, 2025‘Healthy’ Vitamin B12 Levels Not Enough to Ward Off Neuro Decline
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Meeting the minimum requirement for vitamin B12, needed to make DNA, red blood cells and nerve tissue, may not actually be enough – particularly if you are older. It may even put you at risk for cognitive impairment. A new study, led by UC San Francisco researchers, found that older, healthy volunteers, with lower concentrations of B12, but still in the normal range, showed signs of neurological and cognitive deficiency.
[Source: ucsf.edu]
[Image source: Adobe Stock]
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Vitamin B12 functions as a cofactor for key enzymes involved in the synthesis of DNA, fatty acids, and myelin. An insufficient supply of this nutrient can lead to blood disorders and neurological problems. Severe deficiency can result in pernicious anemia, a potentially fatal disease that is characterized by an insufficient production of red blood cells.
Research shows that a significant proportion of older adults are deficient in vitamin B12. Low levels are known to worsen Parkinson’s disease and increase the risk of depression, as well as being associated with dementia and cognitive impairment. A lack of this nutrient has additionally been linked to behavior problems in young boys, gestational diabetes, and the progression of liver fibrosis in non-alcoholic fatty liver disease.
Recent studies have found that vitamin B12 may hold the key to treating multiple sclerosis and play a vital role in preventing hearing loss. It has also been identified as a potential therapeutic agent in the prevention and treatment of acute pancreatitis.
To check out Dr. Rath’s recommendations for optimum daily intake of vitamin B12, see this page on our website.
Dr. Rath Health Foundation
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