Selenium vs Fluoride
Evidence-based comparison of Selenium and Fluoride — absorption, dosage, safety, and which is best for your needs.
Selenium
Thyroid support: Supports thyroid hormone production and conversion; Immune modulation: Regulates innate and adaptive im
Full GuideFluoride
Full GuideDetailed Comparison
| Selenium | Fluoride | |
|---|---|---|
| Category | Mineral | |
| Mechanism | Thyroid support: Supports thyroid hormone production and conversion; Immune modulation: Regulates innate and adaptive im | |
| Safety | Yes, if you get too much selenium over time. Brazil nuts, for example, contain very high amounts of selenium (68–91 mcg per nut) and can cause you t | from Excessive Fluoride |
Which Should You Choose?
Selenium may be better if: Thyroid support: Supports thyroid hormone production and conversion; Immune modulation: Regulates innate and adaptive immune responses; Antioxidant ac
Fluoride may be better if: