Metabolic
Biomarker

Vitamin B12

Included in Blueprint
Why we test it
B12 deficiency causes neurological damage that can mimic dementia. Even levels in the 'low normal' range are associated with brain shrinkage and cognitive decline. B12 is essential for myelin production and homocysteine metabolism.
BetterBrain target
> 600 pg/mL (ideal > 800)
Standard labs flag only below 200 pg/mL. Brain shrinkage and cognitive decline are associated with levels well above that threshold.
What you Can do
  1. Methylated B12 supplementation
  2. B12-rich foods (organ meats
  3. shellfish
  4. eggs)
  5. Methylated B vitamins

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