Four-month-old babies are not recommended to drink fruit juice as well as eat puree, babies in 6 months can be appropriate to add complementary foods, before 6 months to breastfeeding or formula feeding. Under normal circumstances, four-month-old babies are not recommended to add any complementary foods, it is recommended that breastfeeding; babies in 6 months, can only gradually add complementary foods, you can let the baby drink some fruit juice or eat some fruit puree in moderation. But should limit the juice and juice intake, because infants and young children with weak gastrointestinal function, after excessive consumption may aggravate the burden on the stomach and intestines, causing indigestion, in adding complementary foods, must pay attention to nutritional balance, and the amount of complementary foods should not be too much, should be gradually added to the types and quantities of complementary foods. When the baby in the addition of complementary foods, appeared obvious gastrointestinal symptoms, such as abdominal distension, abdominal pain, etc., should take the baby to the doctor for examination and treatment in a timely manner, to avoid delaying the treatment time.