1. Under what circumstances does it need to replace infant milk powder? During the growth and development of your baby, it is sometimes necessary to replace infant formula. For example, when a baby has diarrhea, allergies and other uncomfortable symptoms, it may be because the current milk powder formula is not suitable for the baby. At this time, it is necessary to replace the milk powder suitable for the baby. 2. How to choose milk powder suitable for your baby? 1. Choose milk powder according to the child’s age and weight; 2. Understand