Scientific weight loss diets should generally pay attention to a balanced intake of nutrients, while adhering to an intake less than consumption, together with appropriate physical exercise, which is more conducive to achieving the goal. If you want to achieve the weight loss goal, the daily calorie intake should be lower than the energy consumed by the body for a long time. However, even during the weight loss period, the diet should be scientific and reasonable, balanced intake of carbohydrates, fat, protein, water, vitamins, minerals, dietary fiber, the seven major nutrients. Intake of a rich variety of food, to do less salt and oil. Scientific weight loss should be based on reasonable nutrition, with appropriate exercise, more helpful to weight loss.