Q. What is the reason for high vitamin B12 levels?
Answered by Dr. Parth R Goswami and medically reviewed by iCliniq medical review team.
Hello doctor,
I am 41 years old and just had lab work done and all tests came back great other than B12 which was 1243. But RBC, WBC, and everything were perfect. Is this a huge concern?
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Dr. Parth R Goswami
M.B.B.S., M.D
Hematology, Pathology
Hello,
Welcome to icliniq.com.
Your vitamin B12 level is slightly high. In such cases, hematological profile, liver, and kidney profile have to be checked. I want to check your full CBC and peripheral smear examination report as well. So, kindly upload it so that I can comment on that. Kindly provide me one important history about B12 supplements intake. If you had taken the B12 supplement before the test then that also can simply elevate your B12. It is not a huge concern usually. Vitamin B12 is water soluble vitamin and it can be excreted through urine usually. After checking your reports, I will comment further.
Thank you doctor,
I drink a lot of energy drinks. But no supplement.
Dr. Parth R Goswami
M.B.B.S., M.D
Hematology, Pathology
Hello,
Welcome back to icliniq.com.
I have checked your attached report (attachment removed to protect patient identity). Your hemoglobin, total count, platelet counts all are within limit. So myeloproliferative neoplasm seems very less likely. We can exclude it. Second, your liver and kidney profile report also is absolutely normal. So liver and kidney disease also can be excluded. So we can effectively rule out three important causes of high B12. As your kidney is working properly, your B12 can be excreted in urine. So no need to worry according to my opinion. Can you check your energy drink content?
Thank you doctor,
There have been many days where I drink 2 to 4 of them.
Dr. Parth R Goswami
M.B.B.S., M.D
Hematology, Pathology
Hello,
Welcome back to icliniq.com.
No need to take in that much quantity. Occasional drinking of it is allowable. Rather you can take healthy diet and more fruits. But anyway do not worry regarding high B12. Your reports are normal. And I am not suspecting any major underlying health problem. Do not worry.
Thank you doctor,
I am relieved now and my reports too came back normal.
Dr. Parth R Goswami
M.B.B.S., M.D
Hematology, Pathology
Hi,
Welcome back to icliniq.com.
So, no need to worry. Good luck. I suggest you take natural fruit juices rather than energy drinks.
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