Gum is good for a few things, I've found. When I lost a lot of weight, it was a huge help to me! Unfortunately, I've kept the gum chewing habit, discreetly, of course, but a bit of the weight's crept back! People quitting smoking have also found it helpful, so perhaps that's how you could get a prescription for it. I'm thinking you would have to carry your doctor's prescription folded up behind the gum packet, though!