Pregnant mothers should take appropriate amounts of vitamin B12 and vitamin C. Vitamin B12, also called cobalamin, is a water-soluble vitamin. Plants cannot produce vitamin B12, which is the only vitamin that requires special gastrointestinal secretions to be absorbed by the body. Vitamin B12 can promote the development and maturity of red blood cells, keep the body\’s hematopoietic function in a normal state, and prevent pernicious anemia; it can promote the metabolism of sugar, fat and protein; it can activate amino acids, promote the biosynthesis of nucleic acids, and promote protein synthesis, which is beneficial to infants. It plays an important role in the growth and development of young children. Women\’s digestion and absorption function is enhanced during pregnancy, and their demand increases. If pregnant mothers are deficient in vitamin B12, it can lead to nutritional macrocytic anemia, and newborns can also suffer from anemia. Therefore, vitamin B12 is very important for pregnant mothers. Related reading: 16th week pregnancy symptoms, gestation, signs of fetal breathing Vitamin C, also known as ascorbic acid, is a water-soluble vitamin. Vitamin C can promote the formation of collagen in the human body, and collagen is a protein that keeps skin, joints and bones strong: Vitamin C plays a certain role in wound recovery in the human body. Vitamin C can improve the phagocytic ability of white blood cells, thereby strengthening The human body’s immunity: Vitamin C can also promote nutritional metabolism and ensure the healthy development of the fetus. During pregnancy, the rapid growth and development of the fetus, the growth of bones and teeth, the soundness of the hematopoietic system, and the absorption of iron all require a large amount of vitamin C. In addition, vitamin C also plays an extremely important role in the development of the fetal brain and intelligence. Vitamin C can strengthen the structure of cells, eliminate relaxation or tension between cells, and make the body\’s metabolic function strong. When vitamin C is severely insufficient, it will cause the brain and body to weaken the response to stimulation, and easily cause scurvy. Damage gums, skin, hair, bones, and joints. Adequate vitamin C will significantly promote the development of the fetal brain, make the brain flexible and sharp, and also improve the fetal IQ and memory. Dietary Taboos and Nutritional Prenatal Education in the 4th Month of Pregnancy: The 4th month of pregnancy is still a dangerous period for miscarriage. Special attention should be paid to avoid eating foods that are prone to abortion. At this time, most of the early pregnancy reactions have stopped, the fetus is developing rapidly and needs enough calories, protein and vitamins. Pregnant mothers should not be picky eaters, nor should they be superstitious about supplements such as royal jelly, pearl powder, and chocolate. Fresh milk and goat\’s milk contain high-quality protein and a variety of inorganic salts. They are also rich in vitamin A, vitamin D, vitamin B2, and vitamin B6. Pregnant mothers should drink more milk. During the entire pregnancy, the mother\’s body needs to store about 50 grams of calcium, of which 30 grams are supplied to the fetus. The mother transfers calcium to the baby through the umbilical cord, which can promote the baby\’s bone development. If the mother\’s calcium intake is insufficient, the fetus will take the calcium it needs from the mother\’s bones and teeth to meet the needs of growth. This will easily cause the mother\’s blood calcium to decrease, resulting in calf cramps or tetany. The calcium in milk is most easily absorbed by pregnant mothers, and the proportions of phosphorus, potassium, magnesium and other minerals and amino acids are also very reasonable. Milk contains approximately 120 mg of calcium per 100 g. Pregnant mothers drink 200~400 grams of milk every day to ensure calcium and other mineralsintake. In addition, if a pregnant mother drinks an extra glass of milk every day, the child\’s weight at birth will increase by an average of 41 grams.