Vitamin B-12 is necessary for the production of energy from fats and proteins and is well known for its critical role in DNA synthesis, as well as in homocysteine metabolism.* Methylcobalamin is the co-enzyme form of vitamin B-12 that has been found to be especially critical in the maintenance of a healthy nervous system.* Vitamin B-12 is one of the most important elements that helps develop strong red blood cells, that are responsible for carrying oxygen throughout the body, but also collect carbon dioxide to be exhaled through the lungs.