There are many benefits for babies to eat sweet potatoes. Because when the baby is 4-6 months old and weighs 6.5-7kg, you can consider adding complementary food. Rice flour fortified with iron is the first choice, followed by root vegetables and fruits. Root vegetables include sweet potatoes and potatoes, among which sweet potatoes are rich in nutritional value. It also contains a large amount of dietary fiber, which can not be digested and absorbed in the intestine, can enhance intestinal peristalsis, is conducive to defecation, and is rich in vitamins and trace elements, which is conducive to the baby's growth and development.