It was mentioned earlier, That it was not caffeine, but tanic acid. I disagree, i think it is both. We can't say it's not the caffeine just to justify drinking other caffeinated beverages. However,the amount of caffeine found in coffee is at least two times that in cola drinks. Additionaly, it is three to for times greater the amount of caffeine in other cola drinks, hot chocolate, chocolate. So if you are trying to overcome consuming things that are unhealthy for you, what better place to start than with the worst?  
 
When have you heard anyone say " i cant make it through the day without my cup of hotchocalate"? You probably have heard this about coffee though. Now your probably thinking " I hear people say this about pop though." Well yes if you say that about pop then you are probaly not following the word of wisdom. but again what better place to start than with the worst