It has to come from her. At the moment her hunger signals are messed up- she doesn't really know is she is properly hungry or not. She is probably eating out of routine, boredom, or emotional reasons, such as she feels bad about herself as her Mum thinks she's fat. I think having a kind chat with her about how she sees herself, whether she wants to lose weight or not, whether she feels real hunger before eating, what she would like to wear instead of her bridesmaid's dress, all things that put the ball in her court. Re. food, download www.myfitnesspal.com You can eat whatever you want but mustn't go over your calorie limit. Typing everything in you soon learn what has a lot of calories and what doesn't. If she agrees and truly wants to lose weight, why not go with her to Slimming World- where you CAN eat unlimited amounts of carbs but there are other rules alongside. It works for many many people. It's great if you can't handle hunger. Whatever you do, don't make her feel bad for her shape. Many people struggle their whole lives with weight and it is rarely because they simply like eating pies. It's a complex issue.