Hi, As per my report, I have Vitamin D and B12 deficiency, with levels of 6.5 and 136, respectively. As advised by my doctor, I started taking injections for both vitamins. I have observed a 3 kg weight loss in 2 weeks. Could this weight loss be due to the injections?

Answered by 1 Apollo Doctors

Dr Bhanu Prakash

General Practitioner

MBBS
AFIH
Advanced certificate in critical care medicine
Fellowship in critical care medicine
10+ Yrs

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The weight loss is unlikely from B12/D injections. Likely from improved metabolism or reduced intake. Please take a thyroid function test to rule out hyperthyroidism. Take TSH test to rule out thyroid cause.

Dr. Bhanu Suggests...

Take a THYROID PROFILE TOTAL (T3, T4, TSH) Test

Book THYROID PROFILE TOTAL (T3, T4, TSH) Test

Answered 16/09/2025

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.