1. Definition of infant malnutrition Infant malnutrition refers to a disease caused by abnormal physical development and physiological function development due to insufficient nutrient intake or nutrient absorption disorders. It is a widespread problem worldwide, especially in developing and poor regions. 2. The harm of infant malnutrition 1. Impact on physical development: Malnutrition can lead to slow body growth, retarded weight growth, and abnormal bone and tooth development. 2. Affects intellectual development: the brain and nerves need adequate nutrition