THE BREAKDOWN Alone, Cobalt really doesn't do much. It is a part of the B12 molecule that helps with the growth and stimulation of DNA, regulation of blood and nervous systems and aids in the production of red blood cells.
IN THE BODY Cobalt enters the body through the B12 molecule.
WITHDRAWALS A lack of Cobalt can result in sever nerve malfunctions, anemia and strange developments in cell growth. In order to treat these symptoms, you would need the entire B12 molecule and not just Cobalt.
NATURAL FORMS Natural forms of Cobalt can be found in dairy products, fish, vegetables (mostly leafy) and even kidney beans. Although sometimes listed as an ingredient in cereals, it is useless to human when not part of the B12 molecule.
DAILY DOSE At this time, there is no real daily dosage requirement for Cobalt. The level of Cobalt in food depends on the soil in which the product was grown, so it varies from country to country.
OVER DOSAGE As stated above, there is no danger in humans. However, excess intake of Cobalt in animals can cause overproduction of red blood cells, heart failure and hypothyroidism.
SUPPLEMENTS Only a radioactive form of Cobalt (Cobalt - 60) is ever used, and that is only to treat some cancers.