White crystal or crystalline powder. Taurine plays an important role in promoting the growth and development of children, especially infants and young children, such as brain, height, and vision. Because the activity of this dehydroxylase in infants and young children is very low and its synthesis is limited, it should be supplemented. Especially for infants and young children fed with cow's milk, since cow's milk contains almost no taurine, appropriate nutritional fortification and supplementation are necessary. Currently, functional drinks that are popular around the world mainly supplement taurine.