For infants and young children, over-consumption of milk powder may lead to diarrhea in young children; for adults, over-consumption of milk powder may also lead to gastrointestinal discomforts such as abdominal distension and abdominal pain, and may also easily lead to unbalanced nutritional intake. For infants and young children, due to the baby’s gastrointestinal function is not yet perfect, digestive enzymes and gastric acid secretion is less, the enzyme vitality is also low, long-term overconsumption of milk powder may lead to gastrointestinal dysfunction, and then appear lack of appetite as well as diarrhea and other manifestations. For normal adults, moderate consumption of milk powder can provide the body with rich carbohydrates, proteins and fats and other nutrients, there is a certain nutritional value, but long-term overconsumption will cause bloating, abdominal pain and other gastrointestinal discomfort. Non-formula milk powder in vitamin C (9mg/100g), dietary fiber is seriously insufficient, long-term consumption of large quantities may affect the intake of other foods, resulting in malnutrition. The human body after the age of 1 year is mainly dependent on a varied diet to provide balanced nutrition, and should not rely on a certain type or class of food for a long time. Those who are allergic to dairy products should not consume milk powder.