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Interpret Your Vitamin B12 (Cobalamin) Results

Enter your B12 value below and get an instant, free AI interpretation — a plain-English explanation checked against WHO/IFCC reference ranges.

Medical Disclaimer

This AI-generated interpretation is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Results may vary based on individual health factors not captured here.

Always consult a qualified healthcare professional before making any health decisions. Read full disclaimer →

Supported: Blood tests, urine tests, thyroid, lipid panel, liver function, kidney function, HbA1c, and other numerical lab results. Not supported: ECG, ECHO, ETT, CT scans, MRI, X-rays, PET scans, histopathology, and other diagnostic imaging reports. 🚀 Coming Soon

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Vitamin B12 (Cobalamin) Normal Ranges

Vitamin B12 (cobalamin) is a water-soluble vitamin essential for DNA synthesis, nerve myelin sheath maintenance, and red blood cell formation.

Reference Range	Unit	Notes
200 – 900	pg/mL	—

Also reported in: pmol/L.

Critical (Panic) Values

Critical Low: < 100 pg/mL. Values outside these limits require immediate clinical attention.

Common Causes of High B12

B12 supplements or injectionsLiver disease (release of stored B12)Myeloproliferative disorders (elevated B12-binding proteins)

Common Causes of Low B12

Vegan and strict vegetarian diet (most common in young adults)Pernicious anemia (autoimmune destruction of intrinsic factor producing cells)Atrophic gastritis (reduced intrinsic factor and gastric acid)

Want the full clinical guide to Vitamin B12 (Cobalamin)?

Reference ranges, causes, symptoms, preparation, and FAQs.

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