Nutrition plays a vital role in the management of critically ill patients as it supports healing, maintains body functions, improves immune response, and reduces complications. Critical illness causes metabolic stress, resulting in increased energy requirements, protein breakdown, and changes in nutrient metabolism. Therefore, proper nutritional assessment and individualized nutritional support are essential components of critical care nursing. Critically ill patients often experience a hypermetabolic and hypercatabolic state due to infection, trauma, surgery, burns, or organ failure. This condition increases the need for calories and proteins to support tissue repair and maintain muscle mass. Inadequate nutrition may lead to malnutrition, delayed wound healing, increased risk of infection, prolonged mechanical ventilation, and longer hospital stays. Excessive nutrition can also cause complications such as hyperglycemia, increased carbon dioxide production, and metabolic disturbances. Nutritional assessment is the first step in providing appropriate nutritional care. The nurse should assess the patient’s nutritional status by collecting information about body weight, height, body mass index, recent weight changes, dietary history, disease condition, and laboratory values. Assessment of serum proteins, electrolyte levels, blood glucose, and organ function helps in planning nutritional interventions. The patient’s ability to tolerate feeding and the presence of gastrointestinal function should also be evaluated. Enteral nutrition is the