1. Selection Principles of Stage 1 Milk Powder When choosing Stage 1 milk powder, you need to consider the following aspects: brand reputation, ingredient ratio, applicable age group, price, etc. First of all, brand reputation is one of the important factors in choosing milk powder, which can be understood by looking at consumer reviews and media reports. Secondly, the ingredient ratio is also very important. You need to pay attention to whey protein content, fat content, carbohydrate content, etc. The applicable age group also needs to be carefully considered. Babies at different stages