I just picked up a container of Champion Met Endurance for a pre-ride meal, I've been VERY happy with Champion Metabolol II for post-ride shakes but I guess I should have read the ingredients a bit more carefully on the Endurance formula because it seems to have aspartame in it !! Why on Earth would a nutrition company put aspartame in their nutrition shakes? I really don't want to spend the time and trouble returning this so I'll probably go through this container for the sake of not wasting my money, but is this going to effect my weight management at all and etc? I've heard many bad things about aspartame to the point that it is much much worst than sugar and etc. What should I do? Should I just suck it up and use it up or spend the trouble in returning it? I've already opened it so I'm not sure if they'll even take it back. I picked this up on the way home from a race so it's bout an hour's drive back there.