Many young girls want to be slim and beautiful, and blindly diet to lose weight for fear of being fat. Therefore, it will inevitably do harm to the developing body. Adolescence is the mature and most bodybuilding stage of physical development, and it is also the golden age for girls. However, some young people ignore their natural beauty, blindly pursue fashion and lose weight, making their original bodybuilding figure thin and morbid, but losing their girlish bodybuilding posture. The consequences of blind weight loss will not only lead to nutritional diseases such as anemia and hyperthyroidism, but also lead to endocrine dysfunction, such as irregular menstruation and amenorrhea, which will make the body dysfunctional and even lead to anorexia nervosa and death. The girlhood is the most energetic and curious period, and it is also the period with the most academic achievements. Adequate and comprehensive nutrition is needed to ensure physical and intellectual development. If you blindly diet, picky eaters and partial eclipse in order to lose weight, it will cause nutritional imbalance. The human brain needs sufficient oxygen and various nutrients at any time. The more concentrated people's thoughts are, the more energy they consume. Human memory is closely related to the nutritional status of brain cells. Blindly losing weight will cause nutritional deficiency, which will promote premature aging of brain cells and make them unable to cope with heavy learning and work tasks. Another bad consequence of dieting to lose weight is that due to long-term dieting, protein deficiency and insufficient gonadal hormone secretion lead to amenorrhea. Therefore, young girls should be aware of the adverse consequences of blind weight loss, pay attention to the reasonable nutrition of three meals a day, and get rid of bad eating habits, especially the method of eating snacks instead of meals in order to lose weight. Eat breakfast well, especially, because to be energetic in the morning and ensure a good memory, you need to provide enough heat energy to your brain. Protein, fat, carbohydrates, vitamins and minerals are all raw materials to provide energy. If you don't eat breakfast, your blood sugar will drop, and you will have serious palpitation and fatigue, which will affect your intelligence and health. It is worth reminding that young girls must not lose weight blindly for slim, even at the expense of their health and life. If it is true that girls are overweight, they should also lose weight scientifically under the guidance of doctors. First of all, we must ensure reasonable dietary nutrition. If we control food consumption and physical activity, we can lose weight. In other words, on the basis of a balanced diet, we should strengthen physical exercise and make ourselves a beautiful girl full of youthful vitality and bodybuilding.