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A member asked:
Is taking 5000 mcg of b12 daily safe and how much will this raise my serum b12 by?
A doctor has provided 1 answer
Yes it is safe: But my question is why you are taking these doses. Raising the serum level does not really matter at all. It is the intracellular level that matters and we cannot measure that. It is your overall health that decides the issue.
Answered 2/1/2021
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