Reducing fat and increasing muscle have diametrically opposite requirements for calories. Muscle enhancement: Muscle is an expensive tissue in human body. Muscle consumes a lot of energy and needs a lot of nutritional support. To gain muscle, high carbohydrate, water, fat and high protein are indispensable. An important prerequisite for muscle gain is that calorie intake is greater than consumption. Reducing fat: An important condition for reducing fat is that calorie consumption is greater than intake. To reduce fat, you must control your calorie intake. Low-carbon water, low calorie, low fat, moisture and high protein design fat-reducing menu. Fat is the body's excess energy reserve. To reduce fat, exercise and diet must be controlled so that energy consumption is greater than energy intake. Therefore, in the real fat-reducing period, it is almost impossible to gain muscle in the state of energy loss. It is almost impossible for energy to exceed the desire to lose fat in the process of gaining muscle. These two goals are difficult to achieve at the same time, just like fish and bear's paw.