So eat, just provide yourself with good things, aka Human Food, to eat.
I'm a coffee addict too, so I feel your reservation on giving it up, but there's simply no way to justify it as being good. What you can do is try an herbal coffee like Teechino, but it may take a weaning process to go from from regular coffee to herbal. I used it 1/2 and 1/2 for a while with good success.