I know they can be sneaky about adding it. Did you see all those big campains when they added it to your regular gum? Yeah, me neither. They didn't change the labels either, though it is added to the ingredients. I only realized it because aspartame makes me sick. If they add it, but don't put something to that effect on the label, do you read familar items every single time you ingest them? Someone with PKU could get very ill or die.