It depends on what kind of protein powder it is and whether you are doing professional fitness training. If you don't do professional fitness, don't eat it, because it will cause excessive burden of renal function, which may lead to renal failure and uremia.

Casein is the best protein for professional fitness before going to bed. Because it takes several hours to be fully digested, it can be slowly released during sleep, so that muscles can get enough amino acids during sleep, but this kind of protein is not easy to buy.

Reminder: Normal people had better not supplement protein with protein powder. We only need high-quality and high-protein foods such as milk, cheese, eggs, lean meat and beans to be fully satisfied. Only special people like postoperative and fitness need protein powder to quickly replenish protein and repair muscles, because your body is not completely consumed in time after protein powder supplementation, and the side effects are very great.