There is sweet irony in the fact that cocoa, once considered by some self-appointed health experts to be deleterious to health, has proven over time to be extraordinarily beneficial for health indeed. In fact, you could say that after water, cocoa is the healthiest known substance you can put into your body. If this statement seems to over-reach, consider that no other substance, of any kind, helps to prevent primary killer diseases as well as cocoa. In fact, if cocoa were consumed judiciously and regularly, it would prove the single greatest life-saving medication of all time.