The time of the day for adding complementary foods to babies is usually recommended to be done in the morning. Adding complementary foods in the morning can make it easier for parents to observe whether their babies will have any abnormalities such as indigestion, nausea, vomiting, bloating, diarrhea, etc. after eating complementary foods. If you add supplemental food in the afternoon or evening, parents are likely to ignore the baby’s reaction after the baby falls asleep, which may result in serious consequences such as the baby being allergic to certain foods. In addition, adding complementary foods to babies is a gradual process that needs to be followed from little to much, so that babies can gradually adapt to the process of adding complementary foods; and from thin to thick, starting from rice soup to thin porridge, and then thicken to soft rice; and from fine to coarse, from vegetable juice to vegetable puree; and from one to many, get used to one kind of food before adding another, especially in the early stage of adding complementary foods, not to add a variety of complementary foods at the same time. In the process of adding complementary foods, parents need to pay attention to the allergic children should be added gradually in small doses of a single species one by one, and do a good allergy diary.