How does vit B12 help your body?

B12 and Your Body. B12 is a water soluble vitamin that primary works in the formation of nerve tissue (myelin) and is essential for the maturation of red & white blood cells in the bone marrow (prevents pernicious anemia). It is required in normal folate (folic acid) metabolims and dna synthesis. Biochemically, one form of B12 (methyl b12) helps convert homocysteine to methionine for energy production &, brain & heart health.