[Guideline for medical nutritional treatment of adult patients with gastrointestinal dysfunction (2025 edition)].

Gastrointestinal dysfunction is a common clinical disease. Due to abnormal gastrointestinal digestive and absorption functions, nutrients, water, and electrolytes cannot be absorbed properly, and therefore, scientific and reasonable nutritional intervention is needed. In order to further standardize medical nutrition treatment of patients with gastrointestinal dysfunction, the Chinese Society of Parenteral and Enteral Nutrition (CSPEN) organized experts and scholars in related fields in China to elaborate on the following topics based on current evidence-based medical evidence: the standard process of medical nutrition treatment for patients with gastrointestinal dysfunction, the time and mode of enteral and parenteral nutrition application, and the nutritional intervention mode for patients with gastrointestinal dysfunction in special disease state. Finally, 29 questions and 58 recommendations were formed to provide reference for the standardized application of medical nutrition therapy for patients with gastrointestinal dysfunction.