Protein powder is whey protein component or its concentrate extracted from milk. Its main function is to promote the synthesis of muscle protein and improve immunity, so it is often used for patients in recovery period after operation. In order to modify muscle lines and increase muscle strength, athletes usually take protein powder. In addition, the intake of protein powder after extreme exhaustion exercise also helps to eliminate fatigue and promote recovery. For ordinary bodybuilders, unless the purpose of fitness is to increase muscle mass, it is not necessary to supplement protein powder for fitness activities just to keep healthy. Nowadays, the proportion of food in protein's daily diet has greatly increased than before. A day's intake of protein usually far exceeds the body's needs. Excessive intake of protein ingredients and excessive organic acid metabolites in the body will increase the burden on the kidneys, which will seriously cause gout. Therefore, don't blindly supplement protein powder. It can be seen that the supplement of protein powder should be scientifically supplemented under the guidance of nutritionists according to the energy consumption and dietary nutrition balance of bodybuilders in one day. In addition, if you want to make up, you can make up at any time of the day, instead of "the sooner you make up after exercise, the better." Protein powder itself is easy to digest and absorb, but within 30 minutes after exercise, because the blood is mostly concentrated in the moving organs, the digestive system is weak, and supplementation at this time is easy to increase the gastrointestinal burden. It is recommended to rest for 30 minutes after exercise.