Usually, the baby six months plus complementary food, but due to the growth and development of each baby’s situation is different, add complementary food time can be appropriate earlier or later. Complementary food is to perfect the baby nutritional balance of auxiliary food, in the baby’s growth process plays a role in the beginning and end, as the baby gradually grows up, pure breast milk and can not meet the baby’s nutritional needs, so the need to add complementary foods. Usually in the baby six months old, its ability to swallow and the digestive system function development is better, at this time can be appropriate to the baby plus complementary foods to meet the baby’s physical development needs. However, due to the growth and development of each baby is different, add complementary food time can be advanced or delayed, generally not earlier than four months, the latest in seven months or so. It should be noted that when adding complementary foods to babies, they should be mainly pureed and juiced, such as vegetable puree and fruit juice, and not too much should be added at one time. If the baby in the consumption of complementary foods, abdominal pain, diarrhea and other symptoms, it is recommended to seek medical attention in a timely manner, under the guidance of the doctor to improve the relevant examination, to clarify the cause of the disease, symptomatic treatment.