Cobalt appears to have properties or characteristics unique to itself as a trace element, regardless of its indispensable role in vitamin B12 production. Cobalt contributes to resistance against parasites and infection. Without cobalt, Vitamin B-12 could not exist. The body uses this vitamin for numerous of purposes. B-12 is necessary for the normal formation of all cells, especially red blood cells. Vitamin B-12 also helps vitamin C perform its functions, and is necessary for the proper digestion of the food that we eat. Additionally, vitamin B-12 prevents nerve damage by contributing to the formation of the protective sheath that insulates nerve cells. A deficiency of vitamin B-12 can cause our red blood cells to form improperly. This can prevent our red blood cells from carrying enough oxygen from our lungs to the different parts of our bodies, thus causing a condition called anemia.