I do not know where people got the information that Mormons can not drink Pepsi-Cola or Coca-Cola. They argue for a ban on the grounds that it contains caffeine. But the revelation was not at all about the caffeine, but on hot drinks, which in a later revelation became clearer in that it became clear that it was all about coffee and tea.
So this is just about coffee from the coffee plant, whether it's kokkaffe or brewed coffee, and if it is dekaffeinerat or not. Nothing from the coffee bush. This also applies tea. Ranging from the tea bush, whether it is green tea, black tea (ie, leaves that have undergone treatment) of all kinds. It may be black tea flavored with various fruit essences or anything that has been added (orange peel, lemon peel, flower petals, etc.). This also applies to white tea, which is tea brewed from tea leaves from the tea plant (the most extreme and tender leaves of each branch, top leaves).
This one is what it is about. No coffee or tea. But you have to drink herbal teas, coffee substitutes (may include chicory and other things and are purchased in health food store) and everything else that contains caffeine. You should just be moderate in the use of caffeinated beverages and other foods. For much of what makes you get up to speed.
The rule has absolutely nothing to do with caffeine at all. Caffeine is in addition to coffee and tea to chocolate in all its forms (candy, ice cream, sauces, puddings, cakes, etc.), chocolate drinks, sports press, energy drinks, malt beverages (Ovomaltine, Ovaltine), Coca-Cola, Pepsi-Cola, Root Beer (American soda), other kinds of soft drinks, etc.. You should just be careful so as not to get addicted to these things. Moderation is best, and you may well be on the cautious side so that it is safe.
Caffeine is also known as protein (found in tea), guaranine (found in guarana), matein (found in the (yerba mate). Long thought that these were a bit different in their chemical structure, but recent research seems to showing that it is caffeine anyway, after all.
To sum it up: It's not true that Mormons can not drink or eat anything with caffeine. It's "only" about a deeper insight into a prophetic revelation of "hot drinks", where it was made clear that it was tea and coffee.
en.wikipedia.org / wiki / Word_of_Wisdom # Hot_drinks