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近10年来，欧美与中国的肠外肠内营养专业学会对于营养诊疗的基本步骤认知一致，即营养筛查、营养评定、营养干预(包括干预后监测)三个基本步骤。2018年9月，全球(营养)领导人发起的营养不良诊断标准共识(global leadership initiative on malnutrition, GLIM)在线发表；2019年1月在美国，同年2月在欧洲正式发表。GLIM中明确第一步骤是：经过所在国的前瞻性临床有效性验证的营养筛查工具，在中国将营养风险筛查2002评分(nutritional risk screening 2002，NRS2002)作为诊断营养不良的第一步骤。中华医学会肠外肠内营养学分会营养风险-不足-支持-结局-成本/效果多中心协作组于2019年7月第44次工作坊筹备会议上，专家组提出：关于NRS2002筛查阳性者需制订营养干预计划及人力资源允许时需使用GLIM第二、三步诊断营养不良和严重程度分级的流程问题进行讨论，并于2019年和2020年经过专家函询问卷、现场表决和线上讨论的三轮方式达成本共识。“,”In the past 10 years, American Society for Parenteral and Enteral Nutrition , European Society for Clinical Nutrition and Metabolism and Chinese Society for Parenteral and Enteral Nutrition have had the similar understanding of the basic steps of nutritional care, namely (nutritional screening-nutritional assessment and nutritional intervention, including post-intervention monitoring). The first step of Global Leadership Initiative on Malnutrition(GLIM)using prospective clinically efficacy validated nutrition screening tool in the country where it is located. Nutritional Risk Screening2002(NRS2002)has validated by correct method of prospective clinical efficacy studies in China. The expert group proposed that when NRS2002 screening positive, a nutritional intervention plan needs to be developed. If human resources permit, steps 2 and 3 of GLIM need to be used to diagnose malnutrition and the severity classification process.