gum is banned? why? well if u can't chew gum, somtimes i suck on ice. all it is is just water, so u on't gain anything. u have somthing in your mouth so u can't eat anything, i know it is cold, but u get used to it after a few secs. another way is to eat fruits and veggies whenever u r hungry, less colories and very healthy. do stuff that will keep u active and less actracted to food. that sould help u