Nutrition Department, University of California, Davis, CA 95616, USA.
Am J Clin Nutr. 2010 Apr;91(4):1109S-1115S. doi: 10.3945/ajcn.2010.28450F. Epub 2010 Feb 17.
Nutrient profiling is defined as the science of ranking or categorizing foods on the basis of their nutritional composition. Validity is a general term meaning accuracy. Nutrient profiling systems in the United States have not undergone any systematic validation effort to assess their accuracy against a comparison measure or group of measures. Different types of validation studies should be conducted: content, face, convergent, criterion, and predictive. This article provides a conceptual framework for establishing the validity of nutrient profiling systems with the desired objective of assisting US consumers with food selection to improve diet quality. For a profiling system to work successfully in the American marketplace, it must function well with consumers from most or all cultural groups, from all racial groups, and with low-literate as well as highly literate people. Emphasis should be placed on conducting different types of validation studies and multiple studies with different subpopulation groups. The use of consistent standards to assess the accuracy and usefulness of multiple profiling systems is imperative to successfully identify a nutrient profiling intervention that will have the potential to lead to improved diet quality and eventually to an improved health status in US consumers.
营养成分分析被定义为根据食物的营养成分对其进行排序或分类的科学。有效性是一个通用术语，意思是准确性。美国的营养成分分析系统尚未进行任何系统的验证工作，以评估其与比较措施或一组措施相比的准确性。应进行不同类型的验证研究：内容、表面、收敛、标准和预测。本文提供了一个概念框架，用于建立营养成分分析系统的有效性，其理想目标是帮助美国消费者选择食物，以提高饮食质量。为了使营养成分分析系统在美国市场上成功运作，它必须能够很好地满足来自大多数或所有文化群体、所有种族群体以及文化程度较低和较高的消费者的需求。应重点开展不同类型的验证研究和针对不同亚人群组的多项研究。使用一致的标准来评估多个营养成分分析系统的准确性和有用性，对于成功确定一种有潜力提高美国消费者饮食质量并最终改善其健康状况的营养成分分析干预措施至关重要。
