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Brain Science,
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Evidence-based deep dives on focus, memory, energy, and how the right ingredients change how you think — written by nutritional scientists, reviewed by clinicians.

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Vitamin B12 and brain health - most overlooked deficiency in adults
B Vitamins
3 min read · May 29, 2026

Vitamin B12 and Brain Health: Why the Most Common Deficiency in Adults Is Also the Most Overlooked

Reviewed by the OptiMind Research Team | May 2026Vitamin B12 deficiency affects an estimated 6% of adults under 60 and up to 20% of adults over 60 in developed countries — making it one of the most...

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