Soymilk with brown sugar is not easily absorbed by human body. Because there are many kinds of organic acids in brown sugar, it will combine with protease in soybean milk, so that the nutrition in soybean milk is not easily absorbed by people. White sugar will not have this phenomenon.

The so-called protein powder is generally powder composed of purified soybean protein, casein, whey protein, or the combination of the above protein, and its purpose is to supplement protein for people who lack protein. For healthy people, as long as they adhere to a normal diet, the lack of protein will generally not happen.

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. In other words, 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 is a common index to evaluate the types and contents of essential amino acids in protein.