Starting complementary feeding at 6 months. Under normal circumstances, infants can start to eat complementary foods at around 6 months of age, because infants at around 6 months of age are in a period of rapid growth and development, it is usually difficult for a single breastmilk to meet the nutritional needs of infants, while complementary foods can provide infants with abundant energy and nutrition, and eating complementary foods on time can ensure the healthy development of infants, so infants can usually start to eat complementary foods at around 6 months of age. Complementary foods refer to the supplementary foods for infants in addition to breast milk, which play a role in the growth process of infants, including rice flour, noodles, pureed foods and other edible foods for young children. It should be noted that the gastrointestinal tract function of infants at 6 months is relatively weak, and excessive consumption of complementary foods may burden the gastrointestinal tract, so parents are advised to give infants complementary foods in moderation.