It is beneficial for pregnant women to drink soy milk in moderation every day. It is appropriate to eat any food in moderation during pregnancy and not to crave for more. Soybean milk is a healthy drink made from soybeans or black beans with some other ingredients, and is mainly eaten at breakfast time. Soy milk is rich in vitamin B, vitamin E, vitamin D and other vitamin nutrients, and also contains calcium, phosphorus, zinc, copper, magnesium and other mineral nutrients. These nutrients enter the baby’s body through the mother’s blood circulation and have a very good effect on promoting the baby’s physical development. The plant steroids in soy milk can balance the hormone levels in the mother’s body, which is useful for preventing miscarriage in early pregnancy. The high dietary fiber content of soy milk can effectively prevent and relieve constipation and obesity. However, the daily consumption should not exceed 500 ml.