A member asked:

Will a vitamin b12 deficiency lead to low hemoglobin?

5 doctors weighed in across 3 answers

Yes: It will lead to a macrocytic (large blood cell) hypochromic (low hemoglobin) type of anemia.

Answered 4/25/2021

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Dr. Jason Burke answered

Specializes in Anesthesiology

Absolutely: B12 is required to make the "heme" part of hemoglobin. If you do not have enough b12, you will not be able to make heme, and will therefore have a low hemoglobin level.

Answered 4/24/2015

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Yes: But don't assume your supplies of B12 or your overall nutritional status is adequate if you are not anemic. The neurologic damage in B12 / folate (folic acid) deficiency begins before the anemia.

Answered 7/7/2018

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