Milk powder belongs to the 2907 group food classification of trademark classification. Milk powder is a powder made by removing the moisture from animal milk. It is suitable for storage. Milk powder is a prepared food made from fresh cow's milk or goat's milk, which is frozen or heated to remove almost all the water in the milk, and then dried and added with an appropriate amount of vitamins, minerals, etc. Infant milk powder is mostly made from cow's milk as the basic raw material and then "breast-milked", that is, it is made to simulate the ingredients of human breast milk as much as possible. Generally, if infants consume milk powder until they are about one year old, there will be no concerns about nutritional deficiencies. However, infant milk powder cannot contain beneficial ingredients such as enzymes and immune proteins in breast milk that can aid digestion and fight bacteria.