Scientists warn that current vitamin B12 guidelines may be putting your brain at risk
A study by University of California - San Francisco found that older adults with vitamin B12 levels within the currently accepted normal range still showed signs of cognitive slowing and brain changes linked to lower active B12 levels. Researchers suggest current guidelines may not fully protect brain health, as lower active B12 was associated with slower thinking and visual processing, as well as increased white matter damage. The findings indicate that revising B12 deficiency thresholds to include functional biomarkers could help detect early brain changes and prevent cognitive decline.
A study found that older adults with "normal" vitamin B12 levels still showed signs of brain issues like slower thinking and white matter damage.
This suggests current B12 guidelines may not be sufficient for protecting brain health in older people, potentially leading to earlier cognitive decline.
The findings highlight the importance of re-evaluating health standards to better support brain function and prevent hidden neurological damage.
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