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Description
Elevated plasma vitamin B12 levels and cancer prognosis: A population-based cohort study

Some main reasons behind macrocytic anemia are liver disease, alcoholism, and the patient taking specific types of medications

This was fully investigated in 1849, by British physician Thomas Addison, from which it acquired the common name of Addison's anemia

The biggest difference is bioavailability , which is how much of the vitamin enters your bloodstream
