It's just that it's easier to lose weight if you are a muscular man. Fat people can easily become big muscle men. In the early stage, thin people had low body fat and more obvious muscles. Fat people need to control their diet and lose fat to a certain extent to show their muscles. In the later stage, the absorption of thin people is generally poor, and muscle gain is easy to reach the bottleneck. As long as fat people develop good habits, it is easier to gain muscle and the effect is more obvious. For example, two 180 60kg skinny people become 70kg muscular men after three months of practice. 100kg of fat people are still losing fat. A year later, the thin man's weight of 75 kilograms could not go up. The fat man is still 100kg, but he is full of muscle.