Protein powder is a high-protein nutritional product that is best taken at night before going to bed, or in the morning. Protein powder is a high-protein nutritional product, suitable for patients with hypoproteinemia, malnutrition, anemia, or children during the growth period, postpartum women with weak constitution, or patients with post-surgery weakness, which is beneficial to enhance human resistance, recovery, growth and development. It is best to take it after dinner and before going to bed because the absorption rate of protein is best at this time and it can replenish the consumption during the day. It can also be taken in the morning, after a night’s rest, the body does not eat for a long time, the body needs to be supplemented with nutrients, at this time the gastrointestinal tract digestion and absorption capacity is the strongest. People who work out can take it half an hour after working out to quickly replenish energy and relieve muscle tension. In addition, if you take too much protein powder for a long time, it can lead to liver and kidney function damage, low immunity, and even induce heart disease and increase the risk of cancer. Therefore, healthy people who adhere to a normal diet generally do not need to take protein powder.