Methods of adding complementary foods to infants As the baby grows, breast milk or formula milk can no longer fully meet the nutritional needs of the baby, so complementary foods need to be added. Generally speaking, the time for babies to start adding complementary foods is 4-6 months, and the specific time varies depending on the baby\’s growth and development. The following introduces the methods and precautions for adding infant complementary foods from several aspects. 1. Choose appropriate food ingredients. Before adding complementary food, you must first choose suitable food ingredients according to your baby\’s age. For babies 4-6 months old, it is recommended to add single ingredients such as rice noodles and egg yolks. After 6 months, you can gradually introduce ingredients such as fruit puree and vegetable puree. also