Medically reviewed by Allison Herries, RDN Methylcobalamin and cyanocobalamin are two different forms of vitamin B12.

There have been claims that cyanocobalamin, a form of vitamin B12, is as toxic as cyanide, but experts clarify that this is ...

In the Celsius energy drink, there are 6 micrograms of cyanocobalamin, which is well below the maximum safe limit. According to the National Center for Biotechnology Information, this is actually ...