| | Methylcobalamin: by Ray Sahelian, M.D., cobalamin benefits |
 | | The B12 or cobalamin coenzymes are complex macrocycles whose reactivity is associated with a unique cobalt-carbon bond. |
| | Four cobalamines (methyl-, hydroxy-, adenosyl- and cyancobalamines) are considered as natural forms of vitamin B12 in human and animal tissues. |
| | Content of individual forms of cobalamines and of corresponding coenzymes depends on the function of enzymatic systems involved in their synthesis as well as on the enzymes, which use these derivatives as coenzymes. |
| www.raysahelian.com /methylcobalamin.html (2139 words) |
