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A member asked:
Can high b12 be a bad thing?
5 doctors weighed in across 2 answers
B12 is water: Soluble. Excess should be excreted in the urine. No known effects of high levels.
Answered 1/27/2021
5.4k views
Needs evaluation: B12 is not toxic so high B12 due to taking it is not bad. If someone has high B12 without taking it then it can be a sign of serious problems including liver ; kidney disease, myelproliferative disorders including leukemia ; polycythemia vera ; hypereosinophilic syndrome. High B12 does not cause these but caused by them. Further tests are needed to find the underlying cause: http://bit.Ly/1hvpcy7.
Answered 1/27/2021
4.4k views
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