Hello, I have deficiencies in both vitamin D and B12. When I take supplements, my levels improve, but if I stop the medicine even for a month, the levels drop again. Why does this happen, and what can I do to maintain normal vitamin levels?

Answered by 1 Apollo Doctors

Dr Ezhilarasan Ml

General Practitioner

MBBS
6+ Yrs

Consult Now

Vitamin D and B12 levels drop after stopping supplements if diet and sunlight exposure are insufficient or absorption is poor (gastritis, IBS). After levels normalise, continue maintenance doses as advised by your doctor, take a balanced diet (milk, eggs, fish), and get sunlight for Vitamin D. If levels continue to drop, do Serum Calcium and Complete Blood Count (CBC) with Peripheral Smear to check absorption issues.

Dr. Ezhilarasan Suggests...

Take a Calcium Test Test or Take a CBC Test (Complete Blood Count) Test

Book Calcium Test Test Book CBC Test (Complete Blood Count) Test

Answered 12/09/2025

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