Good eating effect after fitness and easy absorption. Practicing three points and eating seven points is a process of mending. The action of the gym is to stimulate tearing and congestion, while muscle growth is done outside the gym. Eat good, high-protein food (such as beef, milk, fish and shrimp, etc. ), and protein powder replaced these foods. Because within an hour after fitness, muscles need to be repaired and enlarged, and a lot of protein is needed. If you don't eat, it will break down protein (muscle) in your body, and you will get thinner and thinner. You might as well not practice. The main component of muscle is protein. Personally, if you are not a professional bodybuilder, there is no need to eat protein powder. Just eat some food containing protein after fitness. Pay attention to rest, don't stay up late, quit smoking and limit alcohol.