Muscle training depends on eating and practicing. In bodybuilding training, if you are malnourished, you can't practice your muscles well, and you will get thinner, lack nutrition, weakness, dizziness and other effects.

Not only protein powder, carbohydrates and so on are indispensable. Generally speaking, a normal diet can supplement the needs of protein, and there are enough carbohydrates in the staple food. There is no need to go on a diet as long as three meals are normal or you eat less and less.