1. Why choose Stage 3 milk powder? As your baby grows older, breast milk or stage 1 milk powder can no longer meet his nutritional needs, so you need to choose stage 3 milk powder that is suitable for your baby. Compared with Stage 1 and Stage 2 milk powder, Stage 3 milk powder has adjustments in nutrients such as protein, fat, and carbohydrates, making it more suitable for the baby’s growth.