I responded to a similar post abut this a week or so ago...Aspartame is an ingrediant that is under great debate. Some will tell you that it is harmless, some will tell you it should be banned. I dont think anyone knows for certain what effects, if any, it has on the human body. i can tell you that I drink diet drinks daily, and have never had a side effect. I think in this case you will have to draw your own conclusions...you can read a little about it here.
Aspartame - Wikipedia, the free encyclopedia