Yale-Griffin Prevention Research Center, Derby, CT 06418, USA.
Am J Clin Nutr. 2010 Apr;91(4):1102S-1108S. doi: 10.3945/ajcn.2010.28450E. Epub 2010 Feb 24.
Improving diets has considerable potential to improve health, but progress in this area has been limited, and advice to increase fruit and vegetable intake has largely gone unheeded.
Our objective was to test the performance characteristics of the Overall Nutritional Quality Index (ONQI), a tool designed to help improve dietary patterns one well-informed choice at a time.
The ONQI was developed by a multidisciplinary group of nutrition and public health scientists independent of food industry interests and is the basis for the NuVal Nutritional Guidance System. Dietary guidelines, existing nutritional scoring systems, and other pertinent scientific literature were reviewed. An algorithm incorporating >30 entries that represent both micro- and macronutrient properties of foods, as well as weighting coefficients representing epidemiologic associations between nutrients and health outcomes, was developed and subjected to consumer research and testing of performance characteristics.
ONQI and expert panel rankings correlated highly (R = 0.92, P < 0.001). In consumer testing, approximately 80% of >800 study participants indicated that the ONQI would influence their purchase intent. ONQI scoring distinguished the more-healthful DASH (Dietary Approaches to Stop Hypertension) diet (mean score: 46) from the typical American diet according to the National Health and Nutrition Examination Survey (NHANES) 2003-2006 (mean score: 26.5; P < 0.01). In linear regression analysis of the NHANES 2003-2006 populations (n = 15,900), the NuVal system was significantly associated with the Healthy Eating Index 2005 (P < 0.0001). Recently generated data from ongoing studies indicate favorable effects on purchase patterns and significant correlation with health outcomes in large cohorts of men and women followed for decades.
NuVal offers universally applicable nutrition guidance that is independent of food industry interests and is supported by consumer research and scientific evaluation of its performance characteristics.
改善饮食对增进健康具有巨大潜力，但在这一领域的进展有限，而增加水果和蔬菜摄入量的建议基本上没有被采纳。
我们的目标是测试全面营养质量指数（ONQI）的性能特征，该指数是一种帮助改善饮食模式的工具，可以一次做出一个明智的选择。
ONQI 由一组多学科的营养和公共卫生科学家开发，他们独立于食品行业的利益，是 NuVal 营养指导系统的基础。我们回顾了膳食指南、现有的营养评分系统和其他相关科学文献。开发了一种算法，其中包含 30 多个条目，这些条目代表了食物的微量和宏观营养素特性，以及代表营养素与健康结果之间的流行病学关联的权重系数，并对其进行了消费者研究和性能特征测试。
ONQI 和专家小组的排名高度相关（R = 0.92，P < 0.001）。在消费者测试中，约 80%的 800 多名研究参与者表示，ONQI 将影响他们的购买意向。ONQI 评分将更健康的 DASH（停止高血压的饮食方法）饮食（平均得分为 46）与根据 2003-2006 年国家健康和营养检查调查（NHANES）得出的典型美国饮食（平均得分为 26.5；P < 0.01）区分开来。在对 NHANES 2003-2006 人群（n = 15900）的线性回归分析中，NuVal 系统与 2005 年健康饮食指数显著相关（P < 0.0001）。正在进行的研究中最近生成的数据表明，它对购买模式有有利影响，并与数十年间跟踪的大量男性和女性的健康结果具有显著相关性。
NuVal 提供了普遍适用的营养指导，它独立于食品行业的利益，并得到消费者研究和对其性能特征的科学评估的支持。
