Selenium vs Boron
Evidence-based comparison of Selenium and Boron — 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 GuideDetailed Comparison
| Selenium | Boron | |
|---|---|---|
| Category | Mineral | Mineral |
| Mechanism | Thyroid support: Supports thyroid hormone production and conversion; Immune modulation: Regulates innate and adaptive im | Testosterone support: Supports testosterone synthesis or signaling |
| 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 Boron |
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
Boron may be better if: Testosterone support: Supports testosterone synthesis or signaling