Know Your Blood Parameter : Vitamin B7 (Biotin)
- Fatima Qureshi
- Jul 5
- 1 min read
1. Parameter Name
Vitamin B7 (Biotin)
2. Test Type
Blood or urine
3. Normal Range
0.1–0.4 ng/mL (plasma levels)
4. High Levels Indicate
Usually due to supplementation; no known toxicity.
5. Low Levels Indicate
Rare; may cause hair thinning, skin rash, neurological symptoms.
6. Why It's Tested
To evaluate biotin status in deficiency or suspected metabolic disorders.
7. Associated Symptoms (if abnormal)
Hair loss, dermatitis, depression, lethargy.
8. What To Do If Abnormal
Supplement biotin, investigate dietary intake.
9. Common Conditions Related
Biotinidase deficiency, prolonged antibiotic use.
10. Nutrition or Lifestyle Connection
Found in eggs, nuts, seeds, and some vegetables.
11. References NIH Office of Dietary Supplements. (2022). Biotin. MedlinePlus. (2023). Biotin test. https://medlineplus.gov
Comments