Vitamin B12 Deficiency: Causes, Symptoms, and Treatment

The stages are:

Stage I. Low serum level. You have low levels of vitamin B12 in your blood. You have no B12 deficiency symptoms.

Stage II. Low cell store. You have low levels of B12 in your cells.

Stage III. Biochemical deficiency. You have higher levels of the chemicals homocysteine and methylmalonic acid and reduced DNA synthesis, leading to neurological continue reading …