You'll be surprised on how little you'll actually crave for afterwards. Providing you have a balanced daily diet of protien and veg with additions of milk/ dairy products, you should be fine. As hunger does not rear it's head for quite some time. Keep on the multi-vitamins etc and water intake and there should be no problems. But again, resist on trying to finish what's on the plate, as it's a whole new kind of tummy pain that follows when your pouch is full.