Many fat people go on a diet to lose weight. They ate as planned, and in the first few weeks, they did achieve certain results, but the good times did not last long. Before long, their weight began to rebound, even exceeding the weight before dieting. Why? When people start to lose weight, they always assume that dieting will not affect the metabolism of the body, and they also think that the weight loss is due to the consumption of body fat. Actually, it is not. When people go on a diet, the body's first reaction is to extract energy from immediately available energy, which is stored in sugar, not fat. At the beginning of dieting, losing weight mainly consumes glycogen. Only when the body adapts to the prescribed diet can it begin to consume fat and muscle. People who lose weight less than exercise consume muscle rather than fat at this stage. It can be seen that people who lose weight through dieting and can persevere lose weight not only by sugar, water and muscle, but also by fat. And sedentary people, the body began to become weak. After the prescribed dietary period, fat accumulates rapidly, but the lost muscles fail to recover, so in a very short time, fat people "re-emerge" one by one, and may even set a new weight record. Not only that, when the body adapts to the state of dieting, it will improve the efficiency of energy utilization and reduce the metabolic rate, making it more difficult to lose weight again.

It can be seen that simple dieting not only fails to achieve the expected effect, but also is harmful to health. Only by actively exercising while dieting, maintaining and strengthening muscle tissue and consuming fat can we achieve the goal of losing weight.