Nutrition support is essential to improve clinical outcomes and prevent malnutrition-related complications in hospitalized children. This review aims to explore the latest international guidelines and recommendations for nutrition support therapy over the last decade. Many organizations and pediatric societies emphasize the importance of nutrition support therapy and the critical role of nutrition support teams in assessing and managing malnutrition, particularly after screening patients who are at high risk. Although current recommendations address gaps in clinical practice related to nutrition support, minor differences remain across guidelines due to geographical variations among these societies. A unified approach to implementing nutrition support therapy from admission to discharge, with a clear pathway and the involvement of competent healthcare providers, is needed in all healthcare settings. Furthermore, more in-depth systematic reviews, meta-analyses, and consensus statements that integrate guidelines from all societies are required. Such efforts would better support healthcare providers in aligning clinical practices with the highest standards of care.