Vitamin D Levels and Meaning:
| Level (ng/mL) | Status | Meaning |
|---|---|---|
| < 10 | Deficient | Very low levels. Risk of bone disorders like rickets, osteomalacia. Needs urgent correction. |
| 10 – 30 | Insufficient | Below optimal. May cause fatigue, bone pain, muscle weakness. Supplementation usually recommended. |
| 30 – 100 | Sufficient | Ideal range. Supports healthy bones, immune system, and overall wellness. |
| > 100 | Toxicity Risk | Too much Vitamin D. Can cause calcium buildup in blood (hypercalcemia), kidney damage. |
💊 Best Vitamin D Range:
- Optimal (Target) Range: 40–60 ng/mL
- This is considered a good balance — sufficient for bone health and immune function without risk of toxicity.
📝 Notes:
- Test name: 25(OH)D or 25-hydroxyvitamin D
- Units may vary: Some labs use nmol/L (1 ng/mL = 2.5 nmol/L)