1, with different ages: one is 0~6 months, the other is 6~ 12 months, and the third is 1~3 years old. Of course, children can't eat older children's milk powder when they are young, but older children can drink younger children's milk powder.
2. Difference of whey protein content: The state requires that the whey protein content of the first-stage milk powder should be at least 60%, the second-stage milk powder should be above 40%, and the three-guarantee milk powder is not required.
3. Different carbohydrate sources: The carbohydrate in breast milk is mainly lactose. The first and second stage milk powder requires lactose to account for more than 90% of total carbohydrates, and the third stage milk powder requires lactose to account for more than 50% of total carbohydrates. Moreover, sucrose, fructose, sucrose and other sugar substances can not be used in the first and second stages of milk powder, and there is no hard requirement for the third stage, so some three stages of milk powder will add white sugar.
4. Different nutritional components: For example, the iron content in the first stage of milk powder is relatively low, but the iron content in the second and third stages of milk powder will be higher, which depends on the nutritional needs of children, while choline in the first and second stages of milk powder is an essential component, and there is no rigid requirement for the third stage.