Generally, 80% protein powder is protein, and the remaining 20% is water, fat and carbohydrate. Normal adults should be supplemented by about 0.8g~ 1g per kilogram of body weight, but they should be supplemented at least two or three times on this basis as fitness.
For example, a person weighing 60 kilograms can supplement about 48-60 grams of protein every day. Similarly, as a bodybuilder, it is necessary to supplement it two or three times on this basis. As for calories, it is basically negligible for fitness people.
nutritive value
Protein is an important nutrient, and its existence is closely related to various activities of life, such as participating in the composition and metabolism of the body, participating in the composition and metabolism of genetic information, and providing heat for the body.
There are many kinds of protein, and protein from different food sources can be digested, absorbed and utilized by the human body to varying degrees. That is to say, the nutritional value of different kinds of protein is different, and the main factor that determines the nutritional value of protein is the type and content of essential amino acids in protein. Amino acid score (AAS) is a common index to evaluate the types and contents of essential amino acids in protein.