The Memory Vitamin: How B12 Can Keep Your Mind Sharp
Story at-a-glance
- Low vitamin B12 levels slow brain signals and thinking speed in seniors, affecting memory and focus
- Research shows vitamin B12 treatment improved symptoms in 84% of patients with memory issues, with 78% scoring higher on cognitive tests after three months
- High methylmalonate and homocysteine levels — B12 deficiency markers — are linked to smaller brain size and cognitive decline, even when B12 blood levels appear normal
- Regular vitamin B12 testing is important, especially after age 50, as your body absorbs less B12 with age and early intervention prevents damage to brain function
- Good B12 sources include grass fed meat and dairy; vegetarians and those taking medications like metformin should consider supplements to maintain B12 levels
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