Although everyone knows that they should increase nutrition after pregnancy, many pregnant women often think that fish, eggs, milk, fruits or nutritional supplements are more nutritious, and ignore the intake of staple foods. spoon. It is unreasonable to do so. In fact, staple foods, namely carbohydrates, are the body\’s main source of energy. The energy it provides accounts for a large proportion of the total energy, and the energy supply is rapid and timely. The end products of oxidation are carbon dioxide and water, which are harmless to the body. The energy required for nervous system activity can only be provided by glucose. Glucose is necessary for fetal metabolism.