Good question, I wouldn't think so because I've never come across this question before. I would assume that it only applies to the actual Nictoine Gum?
I doubt it would pose any problems.. Im sure there r plenty of smokers following CNS/CBL, it was never stated that smokers need to quit haha. I personally dont notice a difference taking or leaving the gum, so i mainly just chew it for the cognitive boost anymore.