Selenium
Essential for glutathione peroxidase and thyroid hormone metabolism; antioxidant and immune support
Essential for glutathione peroxidase and thyroid hormone metabolism; antioxidant and immune support
200mcg/day (therapeutic), 100-200mcg/day (maintenance)
Practical Guide
Available Forms
Selenomethionine (organic, best absorbed), sodium selenite (inorganic)
Natural Food Sources
- •Brazil nuts (1-2/day)
- •Seafood
- •Organ meats
- •Whole grains
Dosing should be individualized. Consult a qualified healthcare practitioner.
The Science
Evidence Base
Brazil nuts highest source (vary widely); essential for thyroid; narrow therapeutic window; test first: supplementing people with normal levels raised diabetes risk in a trial
Works Well With
Safety Profile
- May interact with chemotherapy
- High doses toxic
- Selenosis (>400mcg/day long-term)
Trusted Brands
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Find a PractitionerEducational purposes only. Consult a qualified healthcare provider before starting any supplement protocol.