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[Guidelines on nutritional support in patients with tumor].

Nutritional support for patients with tumor has been considered an important part of multidisciplinary treatment of tumor. It could improve the prognosis and quality of life for tumor patients when performed in a reasonable and effective way. Chinese Society for Parenteral and Enteral Nutrition (CSPEN) convened experts to develop these guidelines after many discussions and revisions according to standard procedures of guideline's development which were used worldwide. In order to develop these guidelines, we systematically reviewed the related global literature published in recent years, referred to other guidelines of national and international nutrition society, considered on expert opinion and their clinical experience in our country, and widely consulted the members of CSPEN and other related professionals. In the guideline, we firstly expounded metabolic characteristics and nutritional requirements in patients with tumor, and then raised 13 common questions existed in the practice of clinical nutrition, and provided 33 recommendations followed by systematic discussion. The guideline will help to standardize the clinical nutrition practice, provide reasonable and effective nutrition support, and further improve the prognosis and quality of life for tumor patients. We hope that the guideline release could provide theoretical guidance for nutritional support in patients with tumor in our country, and also make great contributions to much progress of clinical nutrition and tumor treatment in our country, and strengthen the multidisciplinary cooperation.