Actually, they do. despite my admonitions, the wife still drinks diet pop (mostly Diet Dr. Pepper), and according to the list of ingredients, it contains aspartame. I'm pretty sure all the other major diet sodas do as well. EDIT: A cursory look shows Diet Dr. Pepper, Diet Pepsi, the majority of Diet Coke and Diet Dew all still contain aspartame. Your right, my apologies. Either way, it's still extremely debatable if it is indeed harmful. I'm sure some studies say it's not harmful, while others do, but a quick scan of Wikipedia found this: (I assumed the NCI would have no hidden agenda) And while they may not help you lose weight, you certainly aren't gaining weight such as with regular soft drinks. I guess basically what I am getting at is that it may or may not be harmful, but nowadays what isn't? Some people believe that their could be a link between cancer and cell phone antennas. Hell, who knows, it's probably bad to use the "crisping sleeve" to cook my hot pocket for lunch too. The problem with trying to draw a correlation between aspartame and cases of cancer is that the evidence is fairly anecdotal. Unless you actually put together a long term, controlled experiment using human subjects (which has not been done, as far as I know), you are basing your findings on fairly flimsy evidence. Often you have to get decades out before you see illnesses that are caused by such factors. In actual lab tests (with rats), the results have been fairly conclusive. IIRC, decades ago the notion that cigarettes caused cancer was met with skepticism, and reports were published discounting the notion, mostly based on the same sort of anecdotal evidence. And if I were you, I would be far more afraid of prolonged cell phone usage than crisping sleeves (though hot pockets will make you fat). There is truth there. Yeah, this was basically my whole point, that nobody knows for sure. I've been told that in the rat experiments, the rats were exposed to huge amount of aspartame (equivalent to humans drinking 30+ diet drinks a day). You think they are unhealthy and harmful, but right now I still meet that with skepticism. I do plenty of other things that are probably unhealthy anyway. But, at least I hate talking on my cell phone :)