I think diet sodas make some people crave sweets. But if you're talking about a bodybuilder or an athlete who has the discipline to know what they're eating, when they have to eat, how much, and why, it's probably not an issue. It might even be good for some people to have diet sodas as a way to satisfy a sugar craving without breaking their diet, but it's an individual thing. Don't completely dismiss it just because it doesn't happen to you.
The main reason that I stopped drinking diet soda is because carbonated beverages seem to interfere with my digestion. But I might just be sensitive. I'll still drink one every now and again, but I rarely feel like finishing the can, I guess I've just lost the taste for it.
Oh, and Diet Dr. Pepper with Cherry > all