Hey Guys,
Be aware of the aspartame in crystal lite. Not only does the methanol turn into formaldehyde in your body (carcinogenic), but aspartame and other artificial sweeteners have been shown to effect your insulin levels negatively. They cause a spike which raises your insulin and obliviously its very hard to burn fat when your insulin levels are spiked. Not only is the aspartame very unhealthy, but crystal lite also contains maltodextrin which also has an effect on your insulin levels. Basically, if you're drinking diet soda and/or crystal lite throughout the day, you will be causing a rapid rise and fall of insulin all day long. Not a good thing when trying to shed body fat...
Here is a great documentary on the background and the negative effects of aspartame:
http://video.google.com/videoplay?docid=1871783678882092937&q=sweet+misery
I'm talking from experience. I was a serious user of crystal lite and diet drinks for many years. I just quit cold turkey about 10 days ago and the withdrawals have been unbelievable. I never knew how these additives (actually narcotics if you do the research) would have such an extreme effect my body and also have serious addictive effects. I was incredibly tired, my eyes were so sore I could barely open them and my overall body felt very weak and sore. It took a full 7 days before I could function again and I'm not going back. Stick with water or decaf natural iced tea with a few lemons for taste. I hope this sheds some light and helps others about this important topic.