Former anorexic Jamie Lynn Sigler was once so committed to being as thin as possible, she used to walk off the calories she gained from chewing gum. The Sopranos actress, who is now healthy after successfully battling her teenage eating disorder, admits she used to work out her calorie intake on every morsel of food - and try to walk it off. She says, "If I had a piece of gum I would sit in my class panicking and think, 'Oh my God, I have to ask to go to the bathroom because if I walk down the hall and I go the long way to the bathroom and then I walk back I'll burn the calories I had in my gum."