What Are the Functions of Proteins in the Body?

Protein is an important part of the body's tissues and organs. None of the tissues in the body contains protein. The lean tissue (non-fat tissue) of the human body, such as muscle tissue and heart, liver, kidney and other organs, contains a large amount of protein, bone , Teeth, and even fingers and toes also contain a large amount of protein; in the cell, in addition to water, protein accounts for about 80% of the substance in the cell, so the components that constitute the body's tissues and organs are the most important physiological functions of protein. The growth and development of the body can be regarded as a process of continuous accumulation of proteins. Protein is especially important for children during growth and development.

Protein physiological function

Maintain tissue growth and renewal

Protein is the main component of cells. Proteins in cells of human tissues are constantly updated. Adults must also ingest sufficient amounts of protein daily to maintain their tissues. When tissue is injured, more protein must be supplied as a raw material for repair. In order to ensure the healthy growth of children, it is especially important to provide children and pregnant women with sufficient amounts of high-quality protein during growth and development.

The proteins of various tissue cells in the human body are constantly updated. Human plasma protein

Important physiological activities in the body are performed by proteins, for example, participating in

Food protein is also a source of energy. Every gram of protein in the body

Protein is an extremely important nutrient for the human body. The daily requirement is large (70-75 g dry weight). Therefore, to correct malnutrition, special attention should be paid to strengthening and adjusting protein foods. Because the physiological function of protein in the human body is really important.

Protein physiological function first

Protein can form and repair body tissues. It accounts for 16.3% of a person's weight and 42% -45% of a person's dry weight. The growth and development of the body, the renewal of aging tissues, and the repair of damaged tissues all require the use of protein as the body's most important "building material." Children's long bodies must not lack it.

Protein physiological function second

Proteins can constitute physiologically active substances. Active substances such as enzymes, hormones, and antibodies in the human body are composed of proteins. The human body is like a complex chemical factory. All physiological metabolism and chemical reactions are completed by enzymes. Physiological functions are regulated by hormones, such as growth hormone, sex hormones, and adrenaline. Antibodies are an "assault team" that is active in the blood, and have the function of protecting the body from bacteria and viruses and improving the body's resistance.

Protein physiological function third

Protein can regulate osmotic pressure. The water between normal human plasma and interstitial fluid is constantly exchanged and kept in balance. The content of protein in plasma plays an important regulatory role in maintaining equilibrium. If there is a lack of protein in the diet for a long time, the protein content in the plasma will decrease, and the water in the blood will penetrate into the surrounding tissues excessively, and nutritional edema will occur. This is the physiological cause of edema in many people during three years of natural disasters.

Protein physiological function fourth

Protein can supply energy. This is not the main function of protein, and we cannot burn "meat" as "chai". But in the absence of energy, proteins must also be used to generate energy. In addition, some of the protein ingested from food does not meet the needs of the human body, or if it is taken in too much quantity, it will be oxidized and broken down to release energy.