These are the main reasons I don't drink diet coke anymore:
Aspartame/Nutrasweet is not very sweet in itself, that may be why Equal puts Dextrose (sugar) and maltodextrin as the first ingredients, so that it tastes sweet.
Aspartame/Nutrasweet is a brain drug that stimulates your brain so you think that the food you're eating tastes sweet. If you pay attention you'll notice that when using Aspartame/Nutrasweet, everything you eat at the same time also tastes sweet! This may be why Aspartame/Nutrasweet causes you to crave carbohydrates. Hence, you won't lose weight using it.
taken from:
http://joi.ito.com/weblog/2002/10/26...t-coke-ba.html
I do, however, still indulge in a diet beverage once in a while but I get all natural diet soda by Dr. Hansen and it is black cherry flavored. It is not made with "fake" sugar but with splenda which your body digests as sugar and does not spike blood sugar levels, which can make you snack.
I only have one of these once in a while, but honestly - I believe in everything in moderation and a diet mountain dew once in awhile isn't gonna kill you.