Pregnant women can drink soy milk in moderation, the benefits are as follows: 1, to promote fetal brain development: soy milk is rich in protein, pregnant women drink soy milk is one of the better ways to ingest high-quality protein. And protein is an important component of the fetal brain cells, accounting for 30%-35% of the brain, plays a very important role in promoting the development of the language center. Pregnant women drink soy milk can not only supplement rich protein and amino acids, but also promote fetal brain nerve cell development, laying the foundation for giving birth to smart, healthy babies; 2, regulation of endocrine: soy milk contains the phytoestrogen soy isoflavones, which can effectively supplement the maternal estrogen and progesterone content, regulate the female endocrine system, balance the maternal hormone levels. At the same time can significantly improve the mentality and physical quality of pregnant women, delaying skin aging, so as to achieve the purpose of nourishing beauty; 3, to prevent pregnancy anemia: the demand for iron increased during pregnancy women, iron loss is serious, if the diet is not enough iron supplementation, it is easy to pregnant women anemia phenomenon. And soy milk has a high content of calcium, phosphorus, iron and other minerals and a variety of vitamins, with a good absorption rate, is the ideal comprehensive prevention of anemia food.