Can taking 5000 mcg daily of vitamin B12 cause cancer?

Answered by 1 Apollo Doctors

Dr Yusuf Mohammad

General Practitioner

MBBS
8+ Yrs

Consult Now

No, it doesnt cause cancer but elevated levels can put you at a risk of cancer

Dr. Yusuf Suggests...

Take a Anti Ds DNA test Test or Take a APOLIPOPROTEIN EVALUATION PANEL WITH LIPOPROTEIN A Test

Book Anti Ds DNA test Test Book APOLIPOPROTEIN EVALUATION PANEL WITH LIPOPROTEIN A Test

Answered 24/07/2025

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Hi Doctor, I am updating my blood report. Please check the report. I feel fatigue all of a sudden and sometimes dizzy. Thank you.

Answered by Apollo Doctors

Hello Sir/Madam, I have been feeling lightheaded, so my doctor suggested checking my vitamin levels. My blood report shows Vitamin B12 at 172 ng and Vitamin D at 6. The doctor prescribed Neurobion Forte for 10 days and Meconerve Plus for 15 days. I am experiencing daily nausea, lightheadedness, and headache. I want to know if my Vitamin B12 level will increase with this treatment and whether I should stop taking Meconerve Plus, as it is causing me significant discomfort.

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What does 'high MCV and MCH' mean on a blood test?

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