Kobolt er et essensielt spormineral som finnes som en del av vitamin B12, som er viktig for nervefunksjon, dannelse av røde blodceller og DNA-syntese. Det kreves i svært små mengder, og mangel kan forårsake symptomer som ligner på vitamin B12-mangel. Selv om det er nødvendig for helsen, kan for mye eksponering for kobolt være skadelig og potensielt påvirke hjerte, lunger og skjoldbruskkjertel.

Occupational exposure is a significant source, especially in cobalt production, mining, and metal processing industries. Environmental exposure can occur near industrial sites. People with metal-on-metal hip replacements are at risk of exposure due to wear of the implant. Dietary sources are generally low but can include foods like leafy vegetables, fish, nuts, and cereals.
Reducing exposure is the primary method for detoxing from cobalt. This includes using appropriate protective gear in industrial settings and ensuring proper implant selection and monitoring for those with metal-on-metal hip replacements. In severe cases, treatment may be required. Supporting overall health with a balanced diet and maintaining good kidney function can aid in the natural elimination of cobalt from the body. In cases of extreme overexposure, chelation therapy might be considered under supervision.
