The growth of the yolk sac doesn’t have much to do with diet, it has to do with the quality of the embryo itself. The yolk sac is part of the cystic structure of the normal gestational sac, which is round or oval in shape, and in women who have regular menstrual periods, it usually appears around 5 weeks of pregnancy, and usually not more than 6 weeks. The development of the yolk sac is related to the embryo itself. If the embryo develops abnormally due to various factors such as infections, basic maternal diseases, immunity, genetics, etc., all of them may affect the growth of the yolk sac and lead to its abnormal development; if the embryo develops well, the yolk sac usually develops normally and does not develop abnormally. If the embryo is well developed, the yolk sac will usually develop normally and will not develop abnormally. The embryo’s nutritional needs are small in early pregnancy, so a normal diet is sufficient, and food itself will not promote the development of the yolk sac. If a woman with regular menstruation is 6 weeks pregnant and the yolk sac is not found in the pregnancy test, it is recommended that she consult a doctor in a timely manner, under the guidance of the doctor, complete the relevant examinations, identify the cause of the disease and treat the symptoms.