1. Classification and ingredients of milk powder 1.1 Classification of milk powder 1.2 Ingredient content of milk powder Milk powder is a dry product made from milk or other animal milk. It is an indispensable nutritional supplement for infants and young children. According to their raw materials and production processes, milk powder can be divided into various types such as whole milk powder, skimmed milk powder, goat milk powder, etc. In terms of its ingredients, it mainly includes protein