The same brand of milk powder from stage one to stage two also needs to be transferred to milk. This is because even if it is the same brand of milk powder, there are still some differences in the nutritional composition of the first and second stage milk powder. In general, the first stage of milk powder, closer to breast milk, the protein content is relatively low, otherwise it is easy to increase the burden on the kidneys of the child, while the first stage of milk powder taste lighter. The second stage of the milk powder in order to adapt to the needs of the child’s growth and development, the nutrient composition has been adjusted to strengthen the content of trace elements and minerals, but also added some choline complex, the purpose is to lay a good foundation for the child’s growth and development. So, even the same brand of first stage milk powder to second stage milk powder is also needed to transfer the milk, but the speed of transferring the milk can be slightly faster. If your child has some gastrointestinal symptoms during the transfer process, it is recommended to stop the transfer immediately. Generally, when switching milk, you can first reduce the milk powder of the first stage by 1/3 and add 1/3 of the milk powder of the second stage, mix the two together and give the child to eat for 2-3 days, and observe whether the child has any symptoms of discomfort, for example, whether the child has nausea, vomiting, bloating, abdominal pain, diarrhea or a rash around the mouth after eating. If there are no clinical signs of discomfort, then you can continue with the transfer. At this time, reduce the first stage formula by another 1/3 and increase the second stage formula by another 1/3, and then eat for 2-3 days. If the child still does not show any signs of discomfort, then you can stop all the first-stage formula and completely transition to the second-stage formula.