Creatine carries no stimulant effect and no calories worth counting — it works less like…
Creatine has been miscast as a fuel for nearly two centuries. The molecule French chemist Michel Eugène Chevreul isolated from beef broth in 1832 does something stranger — it sits inside the muscle cell as phosphocreatine, ready to hand a spent ATP molecule a fresh phosphate group in milliseconds, so the fibre can fire one more time before the burn sets in.