Level 1: The benefits of drinking milk at night for pregnant women. There are many benefits for pregnant women to drink milk at night. First of all, milk is rich in calcium and protein, which are very important for the bone development of pregnant women and fetuses. Secondly, milk is also rich in vitamin D and phosphorus, which can promote the absorption and utilization of calcium. In addition, milk also contains some important trace elements, such as zinc, copper, iron, etc., which can enhance the immunity and resistance of pregnant women. Level 2: Precautions for pregnant women to drink milk at night. Although pregnant women have many benefits of drinking milk at night, there are also some things that they need to pay attention to. First, choose fresh, clean, uncontaminated milk that is not suitable for