Protein powder, using purified soy protein .   In healthy people, protein deficiency does not occur. Excessive protein intake is not only a waste, but also harmful to human health.     Introduction   Protein is the most important nutrient to ensure the health of the body . It is necessary to maintain and repair the body and cell growth . It not only affects the growth of body tissues such as muscles, but also participates in the production of hormones, the maintenance of immune function, and the use of other nutrients and oxygen. Transport, hemoglobin production, blood coagulation and many other aspects. General mental workers require 0.8-1.0 grams of protein per kilogram of body weight every day, while high-intensity athletes and bodybuilders require 2-3 times that amount. This is because high-intensity exercise will damage muscle cells to varying degrees. , causing the decomposition of muscle protein. Timely supplementation of protein can reduce the destruction of muscle tissue, promote protein synthesis, and even over-recovery, thereby growing muscles and improving strength. The traditional way of supplementing protein by eating meat often leads to the intake of too much fat, causing an increase in body fat and even affecting cardiovascular health.   Children in the growth and development period need a large amount of protein to meet the needs of physical development, and pregnant women need a large amount of protein to produce red blood cells and develop the fetus. However, the traditional supplement method of eating big fish and meat often makes many women still lose weight after giving birth. It cannot be reduced because while they are supplementing protein, they are also supplementing a lot of fat. Patients after surgery and recovering from serious illness also need a large amount of protein to promote recovery and improve immunity.   use   Protein powder is a nutritional food supplement targeted at specific groups of people. As an amino acid supplement, protein powder can provide essential nutrients due to protein deficiency for young children, the elderly, sports people, pre- and post-operative patients and people losing weight.   In addition, people with poor appetite or poor digestion, as well as people who are on a diet to lose weight, and vegetarians may not have enough protein intake. This will not only cause developmental delays in children and affect the body’s water metabolism, but may also lead to low immune function and poor sleep. and anemia and other diseases. In these cases, a high-quality protein powder makes a good supplement.   nutritional value   Participate in the composition of the body and the metabolism of the body   Protein is an important type of nutrient. Its existence is closely related to various activities of life. For example, it participates in the composition and metabolism of the body, participates in the composition and metabolism of genetic information, and also provides heat for the body.   The extent to which they can be digested, absorbed and utilized by the human body is also different.   There are extremely many types of proteins. Proteins from different food sources can be digested, absorbed and utilized by the human body to different extents. In other words, different types of proteins have different nutritional values. The main factor that determines the nutritional value of proteins is protein. Types and contents of essential amino acids . The amino acid score (AAS) is a commonly used indicator to evaluate the types and contents of essential amino acids in proteins .   Healthy people do not need to consume protein powder   The “Reference Intake of Dietary Nutrients for Chinese Residents” recommends that the daily protein intake per adult is 65 to 90 grams, or 10% to 12% of total energy to meet metabolic needs. In addition, protein intake varies depending on a person’s age, weight and labor intensity. Children and adolescents during the growth and development period, as well as pregnant or lactating women, generally have higher protein requirements.   The main function   1. Supplementary nutritional sources   Protein is the main source of nitrogen in the human body . It can not only provide part of the energy consumed, but can also be used to synthesize new tissues. Protein in the adult body accounts for about 17% of body weight, and 3% of protein participates in metabolic renewal every day. Infants , young children, teenagers, pregnant women, and lactating women must not only maintain tissue protein renewal, but also synthesize new tissues. When there is insufficient protein in the body, people’s basic life activities will be affected, which can lead to growth retardation, underweight, and mental retardation in children and adolescents; in adults, fatigue, weight loss, anemia , reduced plasma albumin , and even edema; And can cause menstrual disorders in women. Consuming protein powder can effectively prevent or improve these symptoms.   2. Prevent disease   Heart disease is the number one cause of death in Western developed countries. High plasma cholesterol levels are a major cause of heart disease. Animal fat in the diet can increase plasma cholesterol levels and is an important factor in arteriosclerosis and heart disease. Excess saturated fatty acids , cholesterol , and blood cholesterol are directly related to heart disease. Reducing plasma cholesterol also reduces the risk of heart disease. In 1982, scientists from many countries conducted comparative experiments in Italy and Switzerland on patients with high cholesterol using soy protein to replace animal protein. The results showed that consuming 50 grams of soy protein per day reduced their total plasma cholesterol by 20%. This study proved that soy protein It can reduce the adverse effects of blood lipids and cholesterol on the heart in patients with high cholesterol. In the United States, doctors recommend that heart patients eat soy protein before taking cholesterol-lowering drugs. Because soy protein is neither a drug (no toxic side effects) and cheap, it can effectively prevent heart disease without any side effects.   3. Reduce the burden on the kidneys   Kidney disease is a common long-term complication of diabetes , with more than 20% of diabetic patients suffering from impaired kidney function . Ingesting animal protein will increase the burden on the kidneys, leading to aggravation of the condition. Soy protein can prevent and reduce the damage of animal protein to the kidneys by lowering plasma cholesterol levels. Through observation of the dietary treatment of patients with kidney disease, it is found that replacing animal protein with soy protein has the best effect, and patients with kidney disease are also willing to accept foods containing soy protein.   For people   For special people in need, in addition to supplementing essential amino acids through food, protein powder can be appropriately selected as a protein supplement, but the amount of protein powder must be paid attention to. After protein is digested and absorbed through the gastrointestinal tract, it needs to be processed by the liver and converted into the body’s own substances for use by the body.   At the same time, nitrogen-containing substances such as ammonia, urea , and creatinine , the products of protein metabolism in the body, need to be excreted by the kidneys. If a person eats too much protein, it will increase the burden on the liver and kidneys and have adverse effects on the human body. Therefore, more protein is not always better .   Use with caution   1. Patients with liver disease should use with caution   Due to obstacles in the liver’s processing and utilization of protein, protein intake should be appropriately increased. However, for patients with hepatic coma and advanced cirrhosis, supplying too much protein will increase the burden on the liver and aggravate the condition, so animal protein should be limited . And because its metabolism in the body will produce more ammonia, which can induce or aggravate hepatic coma, so these patients can choose some plant proteins rich in branched chain amino acids , especially soy protein . Because branched-chain amino acids are mainly metabolized in muscles, they have a protective effect on liver function.   2. Children under three years old should not eat it   Newborns should not consume protein powder. The best nutrition for babies is breast milk. If the child cannot eat breast milk due to various reasons, he should choose formula milk powder corresponding to the month or age instead of protein powder, because the protein composition of the latter is not suitable for young children and is not conducive to the child’s digestion and absorption. It is likely to cause vomiting, diarrhea or allergies in the future.   3. Gout patients should choose carefully   Consume protein powder with soy protein as the main ingredient. Because the purine in soybeans can cause an increase in uric acid in the body, causing or exacerbating gout. However, some brands of soy protein powder have undergone special processing to reduce the purine content. 4. Special patients should seek medical advice before consumption. The protein contained in protein powder is of high quality. It is decomposed by the liver in the body and then synthesized into the body’s own tissue components. Its metabolites are excreted in the urine through the kidneys. Patients with existing liver, kidney disease and other serious diseases may increase the burden on their organs after taking protein powder. Therefore, before taking protein powder, you should seek the advice of your doctor before deciding whether to consume it. If you want to increase your protein powder consumption, you should also listen to your doctor’s advice.