"3 Essential Rules for a Successful Diet"

For a diet to work, there has to be a calorie deficit. The vast majority of diets that show some evidence of working all share one or more of these three characteristics: they explicitly restrict calories, they are high in protein, or they are high in fibre. Protein takes longer to digest and is more satiating than fat or carbs, so diets high in protein work for many people trying to lose weight. Fibre slows down the rate of digestion, resulting in a reduction in the absolute amount of calories absorbed, making diets high in fibre effective for weight loss.