Duke-National University of Singapore Medical School, Singapore.
Department of Agricultural and Applied Economics, University of Georgia, Athens, GA.
Am J Clin Nutr. 2018 Apr 1;107(4):647-651. doi: 10.1093/ajcn/nqy014.
NuVal, developed by NuVal, LLC, is a shelf nutrition label that rates the nutritional quality of foods on a scale of 1 (worst) to 100 (best).
The objective of this study was to explore the impact of the NuVal labels on food-purchasing patterns.
In 2014, NuVal updated its nutrient profiling system, which changed the NuVal score on many foods. We took advantage of this "natural experiment" to assess the extent to which a change in the NuVal score influenced purchases of yogurts, a category with a wide range of more and less healthy alternatives. We supplemented these data with a survey of consumers in stores using NuVal labels to obtain their experience with the labels and the extent to which they state that the labels influence their purchases.
Results suggested that a 1-point increase in the NuVal score is associated with a 0.49% increase in sales. Because only 8% of survey respondents reported using NuVal to influence dairy purchases, the impact of a change in the score among users may be >10 times the average effect.
Results suggest that front-of-package nutrition labels are likely to influence purchasing patterns. This trial was registered at www.clinicaltrials.gov as NCT03390075.
NuVal 由 NuVal，LLC 开发，是一种货架营养标签，对食品的营养质量进行 1（最差）到 100（最好）的评分。
本研究旨在探讨 NuVal 标签对食品购买模式的影响。
2014 年，NuVal 更新了其营养成分分析系统，这改变了许多食品的 NuVal 评分。我们利用这个“自然实验”来评估 NuVal 评分的变化在多大程度上影响了酸奶的购买，酸奶是一个有许多更健康和不太健康的替代品的类别。我们还对使用 NuVal 标签的商店中的消费者进行了调查，补充了这些数据，以了解他们对标签的体验以及他们表示标签对购买行为的影响程度。
结果表明，NuVal 评分每增加 1 分，销售额就会增加 0.49%。由于只有 8%的调查受访者表示使用 NuVal 来影响乳制品购买，因此在用户中评分的变化可能产生的影响是平均影响的 10 倍以上。
结果表明，包装正面的营养标签可能会影响购买模式。本试验在 www.clinicaltrials.gov 上注册为 NCT03390075。
