Chemical Symbol



The average body has less than 1 milligram of cobalt and it is stored in the muscles, bone, liver and kidneys as a component of vitamin B12.


Cobalt facilitates some functions of vitamin B12 such as DNA synthesis, red blood cell production, nerve functions, and cyanide detoxification.

Forms Available

Recommended Intake

It is recommended by the World Health Organization that the daily intake is 1 microgram; no official daily intake values have been established.


Deficiency symptoms of cobalt would reflect those of vitamin B12 such as nerve disorders, improper cell formation, and pernicious anemia.  These symptoms need additional nutrients to alleviate the deficiency, however.

Sources in the Diet

Green, leafy vegetables, some fish, liver, kidney, cereals and milk all have cobalt.

Recent Studies and Articles

Cobalt distribution in the human body

Cobalt and vitamin B12

Cobalt chlorine increasing erythropoietin

Challenges Presented

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  1. [0] – The New Encyclopedia of Vitamins, Minerals, Supplements, and Herbs
  2. [0] –