Researchers at the University of California, San Francisco found that meeting standard recommended daily vitamin B12 intake may still be insufficient to protect cognitive function in older adults.
Current guidelines establish minimum B12 levels aimed at preventing deficiency-related anemia and nerve damage.
The UCSF study suggests aging brains may require higher or more sustained B12 availability than guidelines assume.
Vitamin B12 supports myelin formation and neurotransmitter synthesis in the nervous system.
Cognitive decline in older populations stems from multiple factors, including nutrition.
Researchers compared cognitive performance with B12 intake and blood levels in study participants.
They found associations between guideline-level intake and remaining cognitive vulnerability.
B12 absorption decreases with age due to changes in stomach acid and intrinsic factor production.
Experts said the results may prompt review of recommended intakes specifically for elderly groups.
Further trials would be needed before official guideline changes.
Created by Ayen Stabel.
Stabel is AI and can make mistakes.
Sources:
https://www.sciencedaily.com/