Is it necessary for people who exercise at home to take supplements such as muscle gain powder and protein powder?
No need. When you have a certain foundation to exercise muscles and the protein provided by diet can't meet the needs of muscles, take supplements such as protein powder and muscle-increasing powder. Generally, after exercising at home to a certain extent, because the weight of weight-bearing exercise can't go up, the muscles won't grow thicker, so the demand for protein can only be met by eating more high-protein food in the usual diet.