The important role of soy protein isolate on the human body

The Chinese Nutrition Society recommends protein intake: 70-90g/day for adults; an additional 20g per day for pregnant women, and an additional 25-30g per day for lactating mothers. The World Health Organization (WHO) recommends: 140g for men and 106g for women. .

Both animal protein and plant protein are composed of amino acids, but their quality is different (depending on the content and proportion of essential amino acids). The human body has a total of 8 amino acids that must be absorbed from food, called essential amino acids.

The quality of animal protein is often closer to the needs of the human body (after all, humans are also animals), and the absorption rate is higher. It is called high-quality protein or complete protein. Plant proteins often lack 1-2 essential amino acids (this does not mean that they are completely absent, but the content is low, which is quite different from the needs of the human body).

The intake of plant protein and animal protein should be basically equal, half and half. Generally, plant protein has a higher content than animal protein, is obtained from a wide range of sources, and has a large daily intake. Moreover, in the process of processing and production, the cost and technology are relatively easy and cheap.

However, plant protein is protein from plants after all, and there is a certain gap between the type and relative amount of protein and the requirements of the human body.

People often believe that if they do not supplement animal foods, they will be malnourished, which will induce a series of health problems. But this view turns out to be wrong. In addition, the latest scientific research in the United States shows that adults who grew up eating milk are much more likely to develop allergies than those who grew up breastfeeding. 

In addition, animal protein foods contain high sulfur content, and many high-protein meats are often accompanied by high fat and cholesterol. Long-term consumption will increase the burden on the kidneys, liver and gallbladder, and harm human health.

Soybeans (including soybeans, black soybeans, green soybeans, and edamame) are one of the few common plants rich in high-quality protein. In addition to methionine (which can be combined with methionine-rich cereals), the rest are essential The proportion of amino acids meets the needs of the human body, and the absorption rate is close to that of meat. Other non-animal foods rich in high-quality protein include quinoa and yeast. In addition to being rich in high-quality protein like animal foods, soybeans are also rich in milk and eggs. Nutritional characteristics (rich in calcium and phospholipids).

The protein content of soy protein isolate is more than 90%, there are nearly 20 kinds of amino acids, and it contains essential amino acids for the human body. It is rich in nutrients and contains no cholesterol. It is one of the few plant proteins that can replace animal protein.

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