Dr. Joe Colella knows the science of weight loss. He has been helping thousands of patients lose weight—and keep it off—for over twenty years. And here's one of his secrets: any diet that leaves you feeling constantly hungry is almost certainly destined to fail.In fact, hunger should be your first clue that your diet isn't working. Sound crazy? It's not. There is science behind it, and in The Appetite Solution, Dr. Colella reveals what is holding you back from the weight loss you desire and provides a six-week, three-phase plan to help you start to shed those pounds in a sustainable way.His revolutionary "Appetite Scale" is a measurement that shows which foods lead to weight gain and cravings, no matter how much you've cut back on calories. Often, much of our weight gain comes from failing to recognize how many simple sugars we consume. Once aware of those secret saboteurs of weight loss, you'll begin the six-week plan. In phase one, you start to incorporate more protein into your diet. Phase two involves a progressive reduction of the simple sugars that lead to weight gain. And in phase three, you gradually begin to incorporate moderate exercise. This step-by-step process allows your body to adjust to the changes without going into survival mode and a decreased metabolism. This means you are increasing your metabolism for the long run, allowing you to slim down and maintain your ideal weight forever.After following the program in The Appetite Solution, you will have the metabolism of a teenager and no longer feel like you pack on pounds despite the yo-yo diet lifestyle you've experienced. Whether you have twenty pounds to lose or two hundred, Dr. Colella provides a practical and realistic way to control your appetite, lose weight, and stay healthy for the rest of your life.