5 doctors weighed in:

Will a vitamin B12 deficiency lead to low hemoglobin?

5 doctors weighed in
Dr. Bryan Levey
Pediatrics
2 doctors agree

In brief: Yes

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

In brief: Yes

It will lead to a macrocytic (large blood cell) hypochromic (low hemoglobin) type of anemia.
Dr. Bryan Levey
Dr. Bryan Levey
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Dr. Ed Friedlander
Pathology

In brief: 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.

In brief: 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.
Dr. Ed Friedlander
Dr. Ed Friedlander
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Dr. Jason Burke
Anesthesiology

In brief: 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.

In brief: 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.
Dr. Jason Burke
Dr. Jason Burke
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