Are you kidding? Coke? That stuff is seriously dangerous. Actually, it has its uses. When I worked on fighter jets, and my coveralls became greasy with hydraulic fluid, oil, and JP8 jet fuel, I would wash them in the contents of a can of coke. That stuff cuts grease like nobody's business! Yes, I am serious. Try it.
As for drinking the stuff, no way. And I gave up Pepsi for the same reasons.