Features B 12, known as the energy vitamin helps convert food into active energy, which fuels your cells and metabolism. Methylcobalamin is a multi-purpose nutrient supporting red blood cell formation, the function of the myelin sheath for healthy nerves, and the synthesis of DNA. Vitamin B-12 also supports the production of SAMe, the bodys main methyl donor necessary to the functioning of many critical metabolic systems and the normal regulation of homocysteine. Due to aging, the bodys ability to produce enough stomach acid for absorption of B-12 may be greatly reduced, making this supplement necessary. Supplementing with the coenzyme form of vitamin B-12 eliminates intermediate metabolic steps, making this vitamin immediately available to work in the body upon absorption. Model: SN1328 UPC: 021078013280