Medyra
Vitamins

Reviewed: 13. Juli 2026

Vit. K Vitamin K

Unit: µg/l

Quick Explanation

Vitamin K is needed for blood clotting and bone metabolism. A deficiency can lead to increased bleeding tendency and occurs with fat malabsorption disorders, long-term antibiotic therapy, or malnutrition, among other causes.

📊 Reference Values

Low
below 0.1 µg/l
Normal
0.1 – 2.2 µg/l

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 low — possible causes

  • ·Fat malabsorption disorder
  • ·Long-term antibiotic therapy
  • ·Malnutrition
  • ·Liver disease

This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.

🩺 Questions for Your Doctor

  • Does a vitamin K deficiency explain my increased bleeding tendency?
  • Should I supplement vitamin K?

Have a complete lab report?

Medyra explains your entire lab report in plain language and prepares questions for your doctor appointment — free, in your language, in under 60 seconds.

Start for free →
⚠️

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.

Vitamin K explained | Medyra | Medyra AI