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What is protein
2024-05-21
Protein is an important component of all cells and tissues of the human body. All the important components of the body need to be involved in protein. Generally speaking, protein accounts for about 18% of the total mass of the human body, and the most important thing is that it is related to life phenomena.
Therefore, the importance of protein in nutrition and health is unquestionable. Especially in the current battle against the new coronary pneumonia, it has been fully recognized that adequate protein is very important for maintaining the body's normal immune function and enhancing resistance.
Food protein is made up of amino acids, so its quality is inseparable from the type and quantity of amino acids contained in it. According to the type and quantity of amino acids contained in food protein, food protein is divided into three categories:
1, complete protein This is a kind of high-quality protein. They contain a complete range of essential amino acids, in sufficient quantities, in appropriate proportions to each other. This kind of protein can not only maintain human health, but also promote growth and development.
Although the amino acids contained in this type of protein are complete, the number of certain amino acids cannot meet the needs of the human body. They can sustain life, but they cannot promote growth and development.
3. Incomplete protein This kind of protein can not provide all the essential amino acids needed by the human body. It can neither promote growth and development nor maintain life by relying on them alone.
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