You can add red wine to the list. I imagine lots of people would want to tax it because it's alcohol, but a glass here and there is apparently great for your heart. I don't drink it as much as I used to because I'd rather eat my calories, but I think it has its place in a healthy diet, as does dark chocolate. A good piece of high-quality dark chocolate and a glass of red wine is much better for you than some crappy fat-free cookie and a Diet Coke, but I'm sure the taxes would go on the former combo and not the latter.
Wait...I said I should stop reading this thread...
I don't know, I guess when something is so blatantly obvious I have to keep trying to convince people.