First, protein powder can improve human immunity, repair cells and build tissues, form normal functions maintained by the enzyme system, and maintain cell metabolism. Provide more rich nutrients to the body. In our human body, the immune system plays an important role, acting as a protective barrier for the human body to prevent the invasion of germs. Second, protein contains a certain lecithin component, which helps enhance memory and alleviate Alzheimer's disease. Third, protein can also supplement nutrition for fitness people, enhance physical strength, and help muscle growth. It is the best choice for fitness people. Based on the above answers, we all know that protein powder has a very important regulating effect on our body. While supplementing basic nutrients, it will also improve our immunity and prevent virus invasion. So what are the functions of protein powder? Do you understand?