Let's get one thing straight here right away: Whether we take in excessive (eat more than we burn) calories from eating protein, fat, or carbohydrates (carbs), you will gain weight. The most brilliant marketing scheme in the dietary world has to be the label "no fat" that is sprawled across countless bags of potato chips bags, pastry boxes, and hundreds of other treats. These words alone have given people from all walks of life the green light to consume massive quantities of these products...because they are "no fat". Even if you do reach for those healthy foods instead, what is common among all of these foods is that they contain calories. There are several good books on the market which provide figures on the caloric make-up of foods you consume. Before you can manipulate your protein, carb, and fat consumption, you must first get a handle on your caloric intake.