评估和总结鼻咽癌放疗患者营养支持的最佳证据，为临床实践提供指导。鼻咽癌放疗患者营养不良的发生率较高，且缺乏统一的指南建议。系统文献检索揭示了鼻咽癌放疗患者营养支持的最佳证据。综述中包括各种类型的文献，例如临床指南、专家共识、系统评价、荟萃分析、证据总结和原始研究。证据根据澳大利亚乔安娜·布里格斯研究所循证医疗保健证据预分级系统（2016 年版）进行分级。数据收集自多个来源，包括 BMJ Best Practice、苏格兰校际指南网络、Cochrane 图书馆、Embase、PubMed、Web of Science、CINAL、CNKI、万方数据库、SinoMed、易脉通指南网络、丁香园、中国营养学会、欧洲临床营养与代谢学会网站、美国肠外和肠内营养学会网站。检索时间从 2013 年 1 月到 2023 年。综合审查共识别出 3,207 篇文章，其中包括 6 篇指南、8 篇专家共识文章、4 篇系统评估、5 篇随机对照试验、2 篇队列试验和 2 篇观察性研究。从这些文章中，我们综合了 63 条证据，涵盖六个领域：营养风险筛查和评估、营养需求、营养支持、营养症状管理、功能锻炼以及营养监测和随访。支持营养的证据总数总结了对鼻咽癌患者接受放疗的支持。但证据应结合临床实际情况，未来应结合大样本、多中心研究进行验证，为接受放疗的鼻咽癌患者提供更科学、有益的营养支持方案。Copyright © 2024 Fan 、崔和刘。

To evaluate and summarize the best evidence for nutritional support in patients receiving radiotherapy for nasopharyngeal carcinoma and to offer guidance for clinical practice.Patients with nasopharyngeal carcinoma undergoing radiotherapy often experience a high prevalence of malnutrition, and there is a lack of compiled guideline recommendations, which complicates the provision of a reference for clinical nursing.A systematic literature search revealed the best evidence of nutritional support for nasopharyngeal carcinoma patients undergoing radiotherapy. Included in the review were various types of literature, such as clinical guidelines, expert consensus, systematic evaluations, meta-analyses, evidence summaries, and original studies. The evidence was graded according to the Australian Joanna Briggs Institute Centre for Evidence-Based Health Care Evidence Pre-Grading System (2016 version). Data were gathered from a range of sources, including BMJ Best Practice, the Scottish Intercollegiate Guidelines Network, the Cochrane Library, Embase, PubMed, Web of Science, CINAL, CNKI, the WanFang database, SinoMed, the Yi Maitong Guidelines Network, Dingxiangyuan, the Chinese Nutrition Society, the European Society for Clinical Nutrition and Metabolism website, and the American Society for Parenteral and Enteral Nutrition website. The search spanned from January 2013 to 2023.A comprehensive review identified a total of 3,207 articles, comprising six guidelines, eight expert consensus articles, four systematic evaluations, five randomized controlled trials, two cohort trials, and two observational studies. From these articles, we synthesized 63 pieces of evidence spanning six domains: nutritional risk screening and assessment, nutrient requirements, nutritional support, management of nutritional symptoms, functional exercise, and nutritional monitoring and follow-up.A total of lines of evidence supporting nutritional support for nasopharyngeal carcinoma patients receiving radiotherapy were summarized. However, the evidence should be combined with the actual clinical situation, and it should be validated in the future by combining large-sample and multicenter studies to provide a more scientific and beneficial nutritional support program for nasopharyngeal carcinoma patients receiving radiotherapy.Copyright © 2024 Fan, Cui and Liu.