My boyfriend is addicted to alcohol. He doesn't like to accept this but we both know this is true. He has been trying to quit for a while now, upon my incessant insistence, and it has been around 10 days since he has stopped. However , as a substitute he has taken to soft drinks. He's been downing at least a liter of Pepsi or Cola every single day without fail. If I try to stop him he gets cranky and snaps at me to not make it more difficult for him. How harmful is this? I know those drinks have a very high content of caffeine and carbon dioxide, would this harm terribly in the long run? I can't understand what to tell him, choosing a lesser evil in a greater quantity over a bigger evil in smaller quantity doesn't seem very different to me. Does any one know of the long term effects of soft drink consumption?? Have you ever tried substituting alcohol with Cola?