This document discusses protein-energy malnutrition (PEM), a major public health problem in India that affects children under 5 years old. It defines PEM as resulting from protein and calorie deficiencies. The most severe forms are kwashiorkor and marasmus. PEM is classified based on severity and symptoms. Kwashiorkor involves edema while marasmus is severe wasting. Risk factors include low birth weight and infections. Treatment focuses on nutrition, infection prevention, and educating parents to prevent relapse. Nursing care includes assessment, addressing nutritional deficits and risks, and monitoring for complications.