After babies add complementary foods, usually between 7 and 9 months old, they can use complementary foods instead of a meal of milk. The complementary foods are usually added from less to more, gradually transitioning from one spoon or two spoons to one meal. , when adding, you can add from one type to multiple types. For example, when adding vegetables, each type can last for 3-4 days. After the trial, you can add another type.

When adding supplementary food, it is generally from fine to coarse, from puree to paste, and then to adult food. The addition of supplementary food should be from soft to hard, from one type to multiple types.