Soy protein is a protein that is isolated from soybean. Soybeans are rich in protein, more than twice the amount of cereal crops like wheat and rice. Soybean protein also contains some proteins with biological activity, such as β-amylase, cytochrome C, plant hemagglutinin, fat oxidase and so on.
In terms of amino acid content, soybean protein contains 9 kinds of essential amino acids required by human body and is a kind of plant protein with sufficient content to meet human needs. It is recognized as a kind of full-price protein, which reaches the evaluation value 1 like casein and egg protein. Soy protein has been shown to significantly lower cholesterol levels in people with high cholesterol. The content of arginine in soy protein drink is higher than that in milk, and the ratio of arginine to lysine is reasonable. Lipid, linoleic acid is very rich and does not contain cholesterol, which can prevent the occurrence of adult cardiovascular disease. Soy protein is rich in lecithin, can clean up the excess sterols in the blood. It is called "vascular scavenger".
Soy protein drinks are easier to digest than milk. Milk into the stomach after easy to form a large and hard lump, and soy milk into the stomach after the formation of small flakes, and soft not hard, can make it easier to digest and absorb. Soybean protein is essential nutrient for everyone, but through the daily diet intake is mostly insufficient, can be supplemented by eating protein powder, especially for some groups of people such as children, pregnant women, nursing mothers, old people.
