Malnutrition screening is a vital component of healthcare, particularly in vulnerable populations such as the elderly, hospitalized patients, and children in low-income settings. Screening tools are designed to assess factors like unintended weight loss, reduced food intake, and body mass index (BMI) to identify individuals at risk of malnutrition. Early detection allows healthcare professionals to implement nutritional interventions, including dietary modifications, supplementation, or the use of specialized feeding protocols. Malnutrition screening is especially important in clinical settings, where malnutrition can exacerbate disease progression, delay recovery, and increase mortality rates. Current research aims to enhance the accuracy and accessibility of screening tools to improve health outcomes through early intervention.