Protein Energy Malnutrition (PEM) is a serious nutritional disorder that occurs when the body doesn't get enough proteins and calories to function correctly. It is one of the most widespread forms of malnutrition, affecting roughly one in four children worldwide, primarily in developing nations.

Protein Energy Malnutrition refers to a range of pathological conditions arising from a coincidental lack of dietary protein and energy in varying proportions. It most commonly affects infants and young children and is often associated with infections. In a clinical or academic PPT, PEM is typically categorized into two primary forms: Kwashiorkor and Marasmus. The Classification of PEM