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Did you know Pepsi is called Pepsi because it used to have pepsin in it? I think it still might. It tastes weird compared to Coke. Anyway, all early soda drinks were thought of as medicinal and energy type drinks, hence, the pepsin. Coke obviously had cocaine in it and Cola or the Kola nut is related to chocolate. It has naturally occurring caffeine as well as theobromine like chocolate.