A member asked:

How low does ones vitamin b12 level need to be to reach anemia?

A doctor has provided 1 answer

Good question: It depends more on how long it is low. The longer the B12 level is low is more important then the level. Hope this helps.

Answered 6/24/2014

5.1k views

Thank

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Is pernicious anemia helped by B12 vitamins as well as as B12 injections?

2 doctors weighed in across 2 answers