Reviewed: 16. April 2026
Vit. D Vitamin D (25-OH-D)
Unit: ng/ml
Quick Explanation
Vitamin D is essential for bones, the immune system, and muscles. Deficiency is very common, especially in winter. Low levels can cause fatigue and bone pain. Discuss any deficiency with your doctor before taking supplements.
📊 Reference Values
ℹ️ Reference ranges may vary slightly between laboratories. Always compare your value with the reference range from your own lab report.
🔍 Possible Causes
Value too high — possible causes
- ·Overdose of dietary supplements
Value too low — possible causes
- ·Little sunlight exposure
- ·Dark skin tone
- ·Older age
- ·Malabsorption
- ·Kidney disease
This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.
🩺 Questions for Your Doctor
- →How severe is my vitamin D deficiency?
- →What dose of vitamin D should I take?
- →How long should I supplement?
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Medical Disclaimer
The content on this page is for general information only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for health-related questions. Lab values should always be assessed in the context of your personal medical history.