Know Your Blood Parameter : Selenium
- Summarised by TGHC Editorial Team
- Jul 17
- 1 min read
Updated: Aug 5

1. Parameter Name
Selenium
2. Test Type
Blood (serum selenium)
3. Normal Range
60–120 µg/L
4. High Levels Indicate
Selenosis from supplements or environmental exposure.
5. Low Levels Indicate
Deficiency due to malnutrition, digestive disorders.
6. Why It's Tested
To assess antioxidant capacity and thyroid function.
7. Associated Symptoms (if abnormal)
Hair loss, nail brittleness, fatigue, mental fog.
8. What To Do If Abnormal
Correct intake, review supplements, address GI issues.
9. Common Conditions Related
Keshan disease, thyroid dysfunction.
10. Nutrition or Lifestyle Connection
Brazil nuts, seafood, eggs, whole grains.
11. References (APA Format) NIH Office of Dietary Supplements. (2023). Selenium. MedlinePlus. (2023). Selenium blood test.



