Babies can usually drink soy milk from 1 year of age. What are the benefits of soy milk? Soy milk is made from soybeans and is an inexpensive, high-quality liquid nutritional product for both young and old, rich in vegetable protein, nitrogen, iron, phosphorus, vitamins, riboflavin, etc., which is great for strengthening the body. It has the effect of preventing and treating hypertension and diabetes. It also contains selenium, vitamin C and vitamin E with antioxidant function, which has the effect of strengthening the physique of children. However, it cannot be used as the main substitute for dairy food. A maximum of one cup a day, not a large amount for a long time, especially a large amount at a time, because it has too much protein, the digestive function of children is not exactly the same as that of adults, there may be diarrhea, bloating, so a maximum of one cup a day.