Dieting can lose weight. Proper dieting can effectively control the fat and protein ingested from food, thereby reducing excess fat in the body, ensuring normal blood lipid concentration and promoting the metabolic rate of fat in the liver. While dieting, you should ensure that you get enough protein and vitamins. Proper consumption of vegetables and fruits can effectively supplement vitamins and protein, promote gastrointestinal absorption and exercise function, and urge gastrointestinal tract to discharge metabolic waste and excess water, thus achieving the purpose of losing weight. Appropriate amount of vitamins can effectively improve the basal metabolic rate, thus improving the metabolic rate of fat in the liver and effectively reducing the blood lipid rate of the human body. Proper drinking water can prevent dehydration or even hypokalemia caused by insufficient water intake caused by dieting, and proper dieting can effectively lose weight.