Niacin vs Selenium
Evidence-based comparison of Niacin and Selenium — 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
| Niacin | Selenium | |
|---|---|---|
| Category | Vitamin | Mineral |
| Mechanism | Lipid modulation: Improves lipid profiles (LDL | Thyroid support: Supports thyroid hormone production and conversion; Immune modulation: Regulates innate and adaptive im |
| Safety | The niacin that food and beverages naturally contain is safe. However, dietary supplements with 30 mg or more of nicotinic acid can make the skin on y | 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 |
Which Should You Choose?
Niacin may be better if: Lipid modulation: Improves lipid profiles (LDL
Selenium may be better if: Thyroid support: Supports thyroid hormone production and conversion; Immune modulation: Regulates innate and adaptive immune responses; Antioxidant ac