Pregnant mothers should not consume high-protein foods for a long time. Medical research shows that insufficient protein supply can easily weaken the physical strength of pregnant mothers, slow fetal growth, delay postpartum recovery, and reduce milk secretion. Therefore, the daily protein requirement of pregnant mothers should reach 90 to 100 grams. However, a high-protein diet during pregnancy will affect the appetite of pregnant mothers, increase the burden on the gastrointestinal tract and kidneys, affect the intake of other nutrients, and make the diet nutritionally unbalanced. Research has confirmed that excessive intake of protein can produce a large amount of hydrogen sulfide, histamine and other harmful substances in the human body, which can easily cause abdominal distension, loss of appetite, dizziness, fatigue and other phenomena. At the same time, excessive protein intake will not only increase the nitrogen in the blood, but also easily lead to an increase in cholesterol and increase the pressure on the glomerular filtration of the kidneys. Some people believe that excessive accumulation of protein in human connective tissue can cause degeneration of tissues and organs, making people more susceptible to cancer. Therefore, pregnant mothers should not eat high-protein foods for a long time. Pregnant mothers should not go on a diet. Some young pregnant mothers are afraid that eating too much fat will affect their appearance, or they are afraid that the fetus will be too fat and have difficulty in conceiving. For this reason, they often restrict their diet and eat as little as possible. In fact, this approach is very harmful. Excessive dietary restraint in pregnant mothers can easily lead to malnutrition, which is extremely harmful to themselves and their fetuses. Related reading: Symptoms of pregnancy in the 23rd week: The fetus is close to the appearance of birth. Pregnant mothers lack protein and cannot adapt to the changes in the uterus, placenta, and breast tissue. Especially in the later stages of pregnancy, edema will occur due to reduced plasma protein. It can also reduce antibody synthesis and reduce resistance to diseases, leading to multiple illnesses. Calcium deficiency in pregnant mothers can soften bones and cause backache and leg pain. If a pregnant mother is deficient in iron, she will suffer from anemia and dizziness; if she is deficient in vitamin A, she will be prone to miscarriage and fetal dysplasia, and her body’s resistance will be reduced, making her prone to postpartum infection; if she is deficient in vitamin B1, she will affect her appetite and milk production secretion, and the edema of the lower limbs is also aggravated, making it easy to get beriberi. Lack of vitamin C in pregnant mothers can aggravate pregnancy symptoms such as constipation and anemia, and may lead to premature birth and miscarriage. For the fetus, innate nutrition is an important link in determining fetal vitality. Insufficient nutritional supply will bring serious consequences, such as lack of protein, which will affect the proliferation of nerve cells and cause mental retardation; lack of inorganic salts, calcium, phosphorus, etc. Elements will affect the growth and development of bones and teeth, and may cause rickets; lack of vitamins will reduce immunity, affect healthy growth and development, and even lead to hypoplasia. Without fat, fetuses are prone to hypoglycemia and respiratory distress after birth, and newborns generally have low immunity, which will also have a certain impact on the child\’s future intellectual development. It can be seen that pregnant mothers should not go on a diet arbitrarily, and the diet arrangement must be reasonable, pay attention to the combination of meat and vegetables, and have balanced nutrition. Otherwise, it is easy to lack certain nutrients or lose balance with each other. After 5 months of pregnancy, you need at least 2700 to 2800 kcal of calories per day. These calories can be obtained from the total daily diet. Eat more chicken, eggs, fish, lean meat, pork liver and dairy, cereals, beans, fresh vegetables, fruits and seafood, etc. We must have a reasonable diet and not be picky or partial.food to meet the nutritional needs of pregnancy. After a woman becomes pregnant, her metabolism becomes stronger, and the tissues and organs related to pregnancy will also undergo changes in weight gain. Women gain about 11 grams more during pregnancy than before pregnancy. Therefore, it is inevitable and reasonable for pregnant mothers to gain weight and gain some weight. There is no need to worry or control.