During pregnancy, both the growth and development of the fetus, as well as the development of the mother’s related organs and the secretion of breast milk for the delivery are necessary nutritional reserves and additional nutritional supplements. Due to the corresponding changes in hormone levels in the mother’s body after pregnancy, some pregnant mothers may experience pregnancy reactions, loss of appetite, nausea, and even pregnancy vomiting. How to do nutritional supplementation during this period. For healthy pregnant women, first of all, if the pregnancy reaction occurs in the early stage of pregnancy (within 3 months) and they can eat a balanced diet (i.e., they can eat the total amount and types of food they usually eat), it is enough to ensure the same nutrition as before pregnancy. Secondly, if pregnant women with obvious pregnancy vomiting or poor appetite do not need to overemphasize balanced diet, but they must consume at least 130 grams of carbohydrates every day during pregnancy, preferring easily digestible cereals and grains, such as various kinds of porridge, pastes and noodles, etc. Pregnant mothers with normal blood sugar can consume more carbohydrate-containing foods, such as sugar. If you have significantly less food or have severe vomiting, or if your symptoms do not improve until the middle and end of pregnancy, you should seek help from your physician or nutritionist to ensure your nutritional reserves.