Babies aged 8 to 9 months can have frothy foods for complementary feeding, such as thin rice, meat froth, vegetable froth and fish puree. If complementary foods are added from about 6 months of age, 8- to 9-month-old babies can gradually add frothy foods, with 1 complementary meal, 1 fruit, and 4 milk as the main food. Commonly used frothy foods include thin rice, soft rice, formula, meat foam, vegetable foam, eggs, fish puree, shrimp puree, tofu, fruit puree, etc., which can begin to cultivate the child to grasp the food with their hands, increase the interest in eating, but also conducive to hand-eye coordination, and cultivate the ability to be independent. Infants need to follow the addition of complementary foods from less to more, from one to many, from fine to coarse, from soft to hard complementary food principles, to avoid causing gastrointestinal dysfunction. It is recommended to consult a pediatrician for regular child care.