Airline pilots are not allowed to drink aspartame sweetened drinks...
Do you have a source for this? I was a corporate pilot for years, and have a father and plenty of friends that currently fly for airlines, both majors and regionals, and plenty of them drink Diet Coke and other aspartame laced beverages.
Last I had heard, the FAA had no official stance on aspartame other than "it's probably not good for you."
