A member asked:

What can cause extremely high vitamin b12 levels? my result was >2,000... i thought diet and/or supplements wouldn't cause high levels.

4 doctors weighed in across 2 answers

Dr. Rex Mahnensmith answered

High b12: This is not uncommon in my experience. It means your intake has been sufficient. Be thankful. There is no toxicity.

Answered 3/21/2019

3.7k views

Thank

Dr. Roy Arnold answered

Specializes in Internal Medicine

Needs Evaluation: Elevated levels of B12 are non-specific but can be associated with bone marrow diseases like polycythemia. Best to be evaluated by a hematologist. Thanks for trusting HealthTap!

Dr Chuu and another doctor agreed

Answered 3/21/2019

3.7k views

Thank

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A member asked:

What can cause extremely high vitamin b12 levels? my result was >2,000... i thought diet and/or supplements wouldn't cause high levels.

4 doctors weighed in across 2 answers

Dr. Rex Mahnensmith answered

Dr. Roy Arnold answered

Dr Chuu and another doctor agreed

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