[The consensus on nutritional and multi-disciplinary management for bariatric surgery].

Obesity is associated with many chronic diseases and has become a major public health problem all over the world. Although weight loss includes lifestyle modification, psychological and medical treatment, bariatric surgery remains an effective treatment for morbidly obese patients. Due to the lack of multidisciplinary management and long-term nutrition monitoring, some patients are suffering from malnutrition, functional impairment and other issues after bariatric surgery. This consensus is commissioned by the Nutrition and Metabolism Cooperation Group of Chinese Society for Parenteral and Enteral Nutrition and Bariatric Multidisciplinary Team of Peking Union Medical College Hospital. This consensus summarizes the latest research results and refers to some recommendations in guidelines both at home and abroad. The detailed evidence-based recommendations allow for nuance-based clinical decision-making that addresses the multiple aspects of real-world medical care of patients with obesity to develop consensus on bariatric surgery and nutritional management among obese patients in multidisciplinary mode, including preoperative evaluation, perioperative management, postoperative long-term follow-up and nutritional management. The goal is to facilitate high-quality care of patients with obesity and provide a rational, scientifically based approach to management that optimizes health outcomes and safety.