Hi jfc,
What a great pic! Can't stop laughing at it.
The official line from Cambridge Diet is..."It is best not to because chewing gum stimulates the release of gastric juices which in turn will make you feel hungry, if you must chew, chew for 2 or 3 minutes if you feel you have to.
Also, even in the sugarless gum you have 5 calories a stick.
Love Mini xxx