I wish I could help you, Father, but I don't think I'm going to be able to give you an answer you like. It's easy to speculate and say that coffee and tea both contain caffeine, so that must be the common factor. Then you don't have to worry about your Campbell's soup getting you kicked out of the Church, but you're left to wonder about your ice tea and Diet Coke. You've got to remember that the Word of Wisdom also included a prohibition against tobacco in any form. Well this was in 1838. There really was no medical knowledge at that time concerning how bad tobacco was for people, nor was there for another 125 years. As more research is done, the negative effects of tobacco continue to grow. Well, the Lord said, "No hot drinks." The man to whom He spoke said to the people, "God meant tea and coffee." So maybe it's the caffeine, but maybe it's not. I just can't make up an answer for you!