vitamin b12 is essential for the proper functioning o
Vitamin B12 Vitamin B12, also called cobalamin, is a water-soluble vitamin that is involved in the metabolism of every cell of the human body: it is a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism.[1] It is particularly important in the normal functioning of the nervous system via its role in the synthesis of myelin,[2][3] and in the maturation of developing red blood cells in the bone marrow[4].