Metabolic
Biomarker

Vitamin D

Included in Essential Labs
Why we test it
Vitamin D functions more like a hormone than a vitamin, with receptors throughout the brain. Many people are deficient since the body needs sunlight to produce it. Low levels are linked to depression, brain fog, and Alzheimer's risk.
BetterBrain target
50-80 ng/mL
Standard labs consider > 30 ng/mL sufficient. Brain-health research shows optimal neuroprotection at 50-80 ng/mL — one of the most common and correctable deficiencies.
What you Can do
  1. Vitamin D3 supplementation
  2. Sunlight exposure
  3. Vitamin D-rich foods (salmon
  4. sardines)

Test what matters for your brain and get a personalized action plan in a BetterBrain Program.

Find Your Program