1. Why is it necessary to add complementary foods to 7-month-old babies? As the baby grows, breast milk or formula milk can no longer meet its nutritional needs, and complementary foods need to be introduced at this time. At about 7 months, the baby\’s digestion has been fully developed and he can begin to gradually add complementary foods. Appropriate addition of complementary foods can not only supplement nutrition, but also cultivate children\’s taste and chewing ability. 2. How to choose complementary foods suitable for 7-month-old babies? 1. Choose foods that are easy to digest: such as rice noodles, noodles, bananas, etc. 2.Select