1. The reason why babies start to add complementary foods when they are six months old. After the baby is born, breast milk or formula milk powder has become the baby\’s main food. However, as the baby grows, these foods can no longer meet the nutrition the baby needs. Therefore, it is very necessary to gradually add complementary foods around six months of age. 2. What kind of complementary food is suitable for a half-year-old baby? When adding complementary foods, you should choose foods that are easy to digest and absorb. For example, rice noodles, millet porridge, pumpkin puree, carrot puree, etc. also,