Consciously improving immunity is a powerful weapon against disease

This week is the annual "National Nutrition Week", with the theme of "Foundation of Rational Dietary Immunization". After the nationwide fight against COVID-19, we must have a deeper understanding of the importance of health. Yesterday, the Provincial Center for Disease Control and Prevention issued a health tip: for most people, consciously improving their immunity in daily life is a powerful weapon to prevent and resist diseases, especially in the face of some new diseases and the lack of specific drugs and vaccines. The method is very simple, that is, scientific diet and healthy life, so that our immunity is always in a healthy state.

What is immunity?

It is the ability of the body to protect "self" and resist "non self". The immune system in the human body includes immune organs, immune cells and immune molecules to form immunity for us.

"Helper" of immunity - protein

Protein is an important component of body cells, tissues and organs. 70% of the solid components in human cells are proteins. It can be said that there is no life without proteins. For our immune system, protein is the material basis for constructing immune organs, immune cells and immune molecules, and plays an important role in the immune function of the body.

How do we synthesize proteins ourselves?

Protein is a biological macromolecule, and its basic unit is amino acid. There are more than 300 kinds of amino acids in nature, but only 20 kinds of amino acids constitute human protein. Eight of these 20 amino acids (nine for infants) cannot be synthesized by human body and must be obtained from food. It can be seen that to ensure our own protein synthesis needs, we must eat.

What food is better for protein supplementation?

Different foods have different protein content and amino acid composition of protein. Whenever we answer the question of protein supplement, we can always see the word "high-quality protein" added.

High quality protein means that the types and ratios of various amino acids contained in it are closer to the composition of protein amino acids in the human body, and this protein is easy to be digested and absorbed by the human body. The recognized high-quality proteins are milk, eggs, meat, fish protein and soybean protein. According to the recommended intake of Chinese residents' dietary guidelines, if the average daily intake of 1 liang of meat, 1 egg, 1 liang of fish, half a liang of soybeans and 300 grams of milk, the amount of high-quality protein required by the body can be guaranteed. (Reporter Wang Jingyu)