Selenium: Nutrition, Pros & Cons
Selenium is an essential trace mineral that acts as a powerful antioxidant, vital for thyroid hormone metabolism, immune function, and protecting cells from oxidative damage.
Health conditions
- Good for Thyroid [ICMR-NIN, PubMed]
- Good for Immunity [ICMR-NIN, PubMed]
- Caution for Diabetes [PubMed]
Pros
- Essential for the synthesis and metabolism of thyroid hormones, particularly the conversion of T4 to active T3. [PubMed]
- Functions as a key component of antioxidant enzymes like glutathione peroxidase, helping protect cells from oxidative stress. [ICMR-NIN]
Cons
- Excessive intake (selenosis) from supplements can lead to adverse effects including hair loss, nail brittleness, and gastrointestinal distress. [PubMed]
Key nutrients
- Selenium — An essential trace element incorporated into selenoproteins that regulate antioxidant defense and thyroid health.