For example, a beginner in bodybuilding has to learn how to exercise and eat in these two months, so the muscle content he has developed in these two months is only about 1-3 kg, and these muscles will not be changed by himself or others.
If a person who has been in fitness for a certain number of years knows how to exercise and eat, he will still feel a little if he only grows about 6- 10 kg in 60 days.
Stick to fitness exercise, only long-term exercise can make you look good.