Failure to keep up with nutrition during pregnancy may lead to delayed fetal development, malformations, and even have the potential to cause miscarriage or premature birth. The development of the fetus in the uterus mainly relies on the nutrition provided by the mother, including protein, calories, vitamins and trace elements. If the mother is chronically malnourished, the nutrients provided to the fetus will naturally be reduced, thus affecting the healthy development of the fetus, resulting in delayed development, malformations, and in serious cases, the possibility of causing miscarriage or preterm delivery. When women are pregnant, if the symptoms of early pregnancy reaction are severe or the food they eat is not nutritious enough, it may lead to malnutrition of the pregnant woman herself. If the symptoms of early pregnancy reaction are serious, you can eat small meals, ensure that the intake of food containing the necessary amount of carbohydrates, and if necessary, consult a doctor for rehydration fluid symptomatic treatment. Pregnant women who have nutrition did not keep up with the situation, should adjust the dietary structure in a timely manner, to avoid picky eating, partiality, if necessary, under the guidance of a doctor to take nutritional preparations to supplement, accelerate the speed of supplementation.