Three-stage milk powder is suitable for babies aged 1~3 years old. As babies of different ages have different digestive and absorptive abilities and different nutritional needs, people have divided milk powder into four segments. The proportion of micronutrients in different segments of milk powder is not the same, generally speaking the lower the segment the higher the nutrient content, the higher the fat content, better absorption. Among them, the three-segment milk powder is suitable for babies aged 1~3 years old. This stage of the baby’s digestive function has been gradually perfected, the type of nutrients it needs is also gradually enriched, so the type of complementary food should also be diversified, and the nutrients in the milk powder compared to the first two segments to reduce some. Its nutrition is mainly obtained through food, which can better meet the baby’s growth and development needs, and can also develop a good eating habit of the baby. Parents are advised to consult a professional dietitian to scientifically formulate their baby’s diet plan.