mineral
Selenium
Trace mineral needed for antioxidant and thyroid-related enzymes.
What It Does
Selenium is part of glutathione peroxidases and deiodinase enzymes.
Adequate intake supports thyroid hormone metabolism.
Who Needs It Most
| Demographic | Target Intake | Upper Limit |
|---|---|---|
| all, thyroid | 55 mcg | 400 mcg |
| male, ttc | 55 mcg | 400 mcg |
Signs of Deficiency
- Fatigue
- Impaired immunity
- Thyroid dysfunction patterns
Best Food Sources
Brazil nuts
Very high
Seafood
Moderate
Eggs
Low to moderate
Supplement Guide
Best forms: Selenomethionine
What to look for: Dose typically 100-200 mcg when used
What to avoid: Chronic high dosing causing selenosis
Timing: With meals.
Who Should Avoid It
No major common contraindications in our database for this nutrient. Always check medication interactions.
The Research
PubMed citations are temporarily unavailable.
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