Vitamin+B12

It is obvious vitamin B12 is a vitamin. It is made from Carbons (63), Hydrogens (88), Cobolt Nitrogen (14), Oxygen (14) and Phosphorus. Some of the foods you would find this in would be Salmon, Yogurt, Milk, Eggs, Cheese, and chicken some more to. A table below shows every thing.

Good Sources of Vitamin B12 Food | Serving | Amount* Mollusks | 3 oz. | 84.1 Beef liver | 3 oz. | 60 Fortified breakfast cereals | 3/4 cup | 6.0 Trout (wild) 3 oz. | 3 oz. | 4.9 Trout (farmed) 3 oz. | 3 oz. | 4.2 Beef 3 oz | 3 oz. | 2.1 Yogurt 1 cup | 1 cup | 1.4 Milk 1 cup | 1 cup | 0.9 Egg 1 large | 1 large | 0.6 Cheese (American) 1 oz | 1 oz. | 0.3 ____________________________________________________________________________ "Vitamin B12's main functions are in the formation of red blood cells and the maintenence of a healthy nervous system. Vitamin B12 is an especially important vitamin for maintaining healthy nerve cells and it aids in the production of DNA and RNA, the body's genetic material. Cyanocobalamin works to promote normal growth and development, helps with certain types of nerve damage, and treats pernicious anemia. Vitamin B12 helps in the formation of red blood cells and in the maintenance of the central nervous system. Nerves are surrounded by an insulating fatty sheath comprised of a complex protein called myelin. B12 plays a vital role in the metabolism of fatty acids essential for the maintainence of myelin. Prolonged B12 deficiency can lead to nerve degeneration and irreversible neurological damage."
 * Micrograms of Vitamin B12

AN image of Vitamin B12.

http://www.vitamins-supplements.org/vitamin-B12-cyanocobalamin.php http://dietary-supplements.info.nih.gov/factsheets/vitaminb12.asp