Protein powder can supplement protein for the human body, but does not have the efficacy of drugs, and can not replace drugs. Protein powder is generally composed of purified soy protein, casein, whey protein and other protein combinations of powder, the use of protein for the lack of protein supplementation, is a health food. Protein powder contains a rich variety of amino acids, such as phenylalanine, valine, leucine, threonine, lysine, etc., can directly supplement the body’s protein needs. However, protein powder is not suitable for all groups of people, the general population can also meet the need for protein in their daily diet, without additional supplementation. It is suitable for people after surgery or after recovering from a serious illness, and when consumed, attention should also be paid to controlling the intake of protein within a reasonable range, protein needs to be metabolized by the liver and kidneys, and if excessive consumption of protein powder may increase the burden on the liver and kidneys. It is recommended to use protein powder as needed, and if there is any discomfort, consult a doctor for targeted treatment.