What effect does protein have to human body? What are the consequences of protein deficiency? After watching you

Protein is one of the three major productivity nutrients of human body, which plays a very important physiological role in our body Protein is an important substance that constitutes human tissues, and it can also promote the development of the body, participate in the transport of many important substances, provide energy for the body, regulate the osmotic pressure of the body, regulate the immune function of the body, constitute some hormones, and regulate muscle contraction , synthetic collagen, etc So what are the consequences if our body lacks protein? Today we'll take a look at this problem 　　   Before we answer the questions in detail, let's take a look at the physiological functions of proteins, as follows: I The effect of protein on human body 1 Constitute the components of human tissues and cells, maintain the growth, renewal and repair of cells It can be said that protein is the material basis of all life Without protein, there is no life Every tissue of human body: hair, skin, muscle, skeleton, internal organs, brain, blood, nerve, etc are made up of protein The human body is composed of 10 trillion cells, which can be said to be the smallest unit of the human body They are in an endless metabolism, such as the red blood cells survive in the human body for 120 days, the old cells die, and the new red blood cells are generated; the epidermis of young people is renewed once every 28 days; The gastric mucosa should be renewed once every two or three days, and all of them need protein intake, absorption and utilization to maintain 　　   2 Constitute a variety of physiological active substances For example, nucleoprotein constitutes the nucleus and affects the cell function; immunoglobulin maintains the normal immune function of the body; enzyme participates in all biochemical reactions in the body; hormone (such as insulin and auxin) regulates the physiological activity of various organs in the body 　　   3 Maintain the acid-base balance of body fluids, maintain the normal osmotic pressure of human capillaries, and maintain normal vision 4 Heat supply 1g protein can produce 4kcal of heat energy 　　   The harm of protein deficiency ① when the protein intake is insufficient and the amount of protein synthesis in the human body is less than the amount of protein decomposition, the body will lose weight; the skin has no luster and elasticity; the resistance to diseases will decline, the human body is often in a sub-health state; the wounds of patients are difficult to heal, etc ② long term lack of protein will lead to the puffiness type with insufficient protein supply, protein energy malnutrition It is mainly found in infants under 3 years old Clinical manifestations: edema of the whole body, dry and atrophic skin, keratinization and desquamation, edema of eyelids and low drooping parts of the body, fragile and easily broken hair and falling off, weak nails with transverse grooves, no appetite, diarrhea and watery stools 　　   Food rich in high quality protein The foods rich in high-quality protein include: bean products, milk, eggs, fish and so on Although the meat of livestock and poultry is also rich in protein, the fatty acids it contains are mainly saturated fatty acids, so eating too much will increase the risk of obesity Therefore, we should pay attention to the limit of meat of livestock and poultry The dietary guidelines of Chinese residents suggest that each of us should not eat more than 40-75g of meat of livestock and poultry every day.