Hey, my lab reference range for vitamin B12 is 187 to 883 pg/ml, and my test result is 341 pg/ml. Is this considered normal, or do I have a B12 deficiency? I am 17 years old.

Answered by 1 Apollo Doctors

Dr Hema Pratima

General Practitioner

MBBS
Fellowship in Diabetes Mellitus
9+ Yrs

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Your B12 level is within the labs normal range but on the lower side. If you experience fatigue or tingling, discuss supplementation with your doctor. A diet rich in B12 or oral supplements might help.

Dr. Hema Suggests...

Take a Vitamin B12 Test Test

Book Vitamin B12 Test Test

Answered 11/09/2025

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