营养治疗在恶性肿瘤治疗中发挥着至关重要的作用，其有利于提高肿瘤患者免疫力，改善生活质量，减少并发症，降低治 疗成本。在过去的几十年，肿瘤营养治疗发展迅猛，越来越得到国际学术领域的关注。2020年，国内外多项研究对肿瘤患者的营养 治疗进行了深入探讨，循证医学证据不断涌现、更新，在肿瘤营养临床诊断、评估、治疗等方面取得了重要突破和进展。基于此，中国 抗癌协会肿瘤营养专业委员会立足于目前肿瘤营养研究数据和证据，汇总了2020 年度肿瘤营养学科的最新研究进展及未来发展方向。

Nutrition therapy plays a crucial role in the treatment of malignant tumors, which is beneficial to improve the immunity of cancer patients, improve the quality of life, reduce complications, and reduce treatment costs. In the past few decades, cancer nutrition therapy has developed rapidly and has attracted more and more attention in the international academic field. In 2020, a number of studies at home and abroad have conducted in⁃depth discussion on the nutritional therapy of cancer patients, evidence⁃based medicine continues to emerge and update, and important breakthroughs and advances have been made in the clinical diagnosis, evaluation, and treatment of cancer nutrition. Based on this, the Professional Committee of Cancer Nutrition, Chinese Anti⁃Cancer Association summarized the latest research progress and future development directions of cancer nutrition discipline in 2020 based on the current cancer nutrition research data and evidence.