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

There are two commonly used vitamin B12 supplements: cyanocobalamin and methylcobalamin, said Dr Vichar Nigam, consultant, ...

Methylcobalamin comes as a tablet to take by mouth, with or without food. It is also available as sprays, sublingual supplements and liquid forms for those who cannot digest the tablet form well ...