Vitamin B12 (Cyano, Methyl cobalamine)

Vitamin B12 is available in several chemical forms, with cyanocobalamin and methylcobalamin being the most common in supplements and fortified foods. Cyanocobalamin is a synthetic, stable form converted in the body into active forms, while methylcobalamin is a naturally occurring, bioactive form involved in metabolic processes such as neurological function and DNA synthesis.