As the name suggests, the Fast Metabolism Diet is a type of eating regimen that encourages your body to process food quickly and more efficiently. Knowing how our body metabolism works, will help change our diet and calisthenics in a way that will promote the burning of calories as our metabolism increases. Often, many people complain about their inability to lose weight due to their slow rate of metabolism. However, the solution lies in a change in their diet regimen and workout pattern. Metabolism is the process by which your body converts calories from food into energy. There is a common misconception that slim people have higher metabolism while fat people have lower metabolism. The reality however, is that it depends on how much calories you eat and how much of it gets burnt. When you consume more calories than what your body needs, you gain weight. Metabolism is the body's engine that burns calories and at the same time regulates its caloric need.