I went through a 18m phase of drinking peppermint tea but the only downside was that it stained my teeth a bit, which wasn't so nice.
I do like a slice of orange in hot water though, not lemon, too acidic. Refreshing.
I'm on medication that makes some sweet things taste vile (which is lucky) but it doesn't work with everything. I think I need some sort of CBT so that I associate the fatty, crappy food with tasting like something vile, dog poo or something. Perhaps go with aversion therapy or something. Keep a pot of cat poo and sniff it whenever offered cake etc.