Generally pregnant women do not need to take DHA supplements when their diet during pregnancy is nutritionally adequate. DHA refers to docosahexaenoic acid, which is found in fish, especially deep-sea fish. During pregnancy, due to the influence of different degrees of early pregnancy reaction in early pregnancy, since the middle of pregnancy, you can ensure a reasonable and balanced dietary nutrition under the guidance of the doctor, such as meat, fish, eggs, poultry, etc., in order to meet the growth needs of the fetus. So when the intake of dietary nutrition is sufficient, there is no need for additional DHA supplementation. During pregnancy, you should also under the guidance of your doctor, go to the labor and delivery clinic on time, so that you can detect pregnancy complications and intervene in a timely manner to minimize the risk of pregnancy. Moderate physical exercise, such as walking, pregnancy yoga, etc., can also be carried out to ensure appropriate weight gain during pregnancy, which reduces the risk of gestational diabetes, macrosomia, etc., and is conducive to natural delivery.