They can also be downright harmful. Cyanocobalamin molecules must be first broken down and turned into biologically available forms of cobalamin. In the process

They can also be downright harmful. Cyanocobalamin molecules must be first broken down and turned into biologically available forms of cobalamin. In the process, a cyanide molecule is released into your liver. It’s not enough to kill you, but it does tax your liver. People report feeling slightly lightheaded and a loss of focus taking cyanocobalamin versus other, more readily available forms.