It is usually not recommended to lose weight during pregnancy because weight loss during pregnancy may affect the growth and development of the fetus, so try to choose to lose weight after delivery. However, if your weight was heavy before pregnancy or if you gained too much weight during pregnancy, you can control your weight by controlling your diet and doing proper exercise. When pregnant, because the growth and development of the fetus needs to take a lot of nutrients from the mother’s body, pregnant women need to take care of their own nutritional needs as well as those of the fetus. Therefore, it is necessary to increase the intake of nutrients during pregnancy, but not through dieting to lose weight, in order to prevent the fetus from malnutrition, affecting the normal development, and should not use weight loss products during pregnancy, in order to prevent the harmful ingredients in the drugs to cross the placental barrier, affecting the health of the fetus, resulting in fetal malformation. If you are too obese before pregnancy or weight gain is too fast, you can control your diet, develop good eating habits, avoid excessive consumption of potato chips and other high-calorie snacks, in order to prevent over-nutrition, it is advisable to consume more dietary fiber-rich vegetables, such as broccoli, spinach, and so on, but also appropriate exercise, such as walking, swimming, yoga, and so on. Apart from that, you need to avoid intense exercise and over-exercise during pregnancy, which may lead to severe uterine contractions and increase the risk of preterm labor, spinal damage, and so on.