Toxin
Biomarker

Selenium

Available as add-on
Why we test it
Selenium is an essential trace mineral with powerful antioxidant properties. Both deficiency and excess affect brain health. Optimal selenium levels support the production of selenoproteins that protect neurons from oxidative damage.
BetterBrain target
100-150 µg/L
Both deficiency and excess affect brain health. Optimal levels support selenoproteins that protect neurons from oxidative damage.
What you Can do
  1. Brazil nuts (1-2/day)
  2. Selenium-rich foods (tuna
  3. eggs
  4. sardines)
  5. Selenium supplementation (if deficient)

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