Taillie Lindsey Smith, Higgins Isabella C A, Lazard Allison J, Miles Donna R, Blitstein Jonathan L, Hall Marissa G
Department of Nutrition, Gillings Global School of Public Health, The University of North Carolina at Chapel Hill, 135 Dauer Drive, 245 Rosenau Hall CB # 7461, Chapel Hill, NC, 27599, USA; Carolina Population Center, The University of North Carolina at Chapel Hill, 123 W Franklin Street, Suite 2107, Chapel Hill, NC, 27516, USA.
Carolina Population Center, The University of North Carolina at Chapel Hill, 123 W Franklin Street, Suite 2107, Chapel Hill, NC, 27516, USA; Department of Health Behavior, Gillings Global School of Public Health, The University of North Carolina at Chapel Hill, 135 Dauer Drive, 302 Rosenau Hall, CB #7440, Chapel Hill, NC, 27599, USA.
Appetite. 2022 Aug 1;175:106059. doi: 10.1016/j.appet.2022.106059. Epub 2022 May 5.
Despite growing evidence that warning labels reduce purchases of sugary drinks, less is known about warnings' impact on purchases of sugary snacks. This paper aimed to experimentally test whether a front-of-package label warning about high sugar content ("sugar warning label") would reduce parents' likelihood of selecting a labeled snack versus a non-labeled snack for their child in a food store setting. Participants (n = 2,219 parents of at least one child aged 1-5y) were recruited via an online panel and asked to complete a shopping task in a virtual convenience store. Participants were randomized to one of three labeling conditions: barcode control, text-only sugar warning label, or pictorial sugar warning label. Participants viewed two granola snacks, one labeled and one unlabeled, and selected one for purchase. A post-shopping survey measured secondary outcomes. Predictions and analyses were preregistered on www.clinicaltrials.gov (NCT04381481). Participants exposed to the text or pictorial sugar warning labels were less likely to select the labeled snack than those in the barcode control group (21%, 18%, and 34% respectively; p < 0.001 for both comparisons of warning to control). Relative to the barcode control label, the text and pictorial sugar warning labels resulted in greater attention, anticipated social interactions, negative affect, cognitive elaboration, and perceived message effectiveness, as well as lower perceptions of healthfulness, appeal, and intentions to purchase or consume the product (p < 0.001 for all comparisons of warnings to control). There were no differences in outcomes between text and pictorial sugar warning labels. In conclusion, text and pictorial sugar warning labels reduced parents' likelihood of selecting a labeled granola snack for their children. These results contribute to a growing body of evidence showing that warning labels influence food purchasing behaviors.
尽管越来越多的证据表明警告标签会减少含糖饮料的购买量,但关于警告对含糖零食购买的影响却知之甚少。本文旨在通过实验测试食品包装正面关于高糖含量的标签警告(“糖警告标签”)是否会降低父母在食品店环境中为孩子选择贴有标签零食而非未贴标签零食的可能性。通过在线小组招募了参与者(n = 2219名至少有一名1 - 5岁孩子的父母),并要求他们在虚拟便利店中完成一项购物任务。参与者被随机分配到三种标签条件之一:条形码对照、纯文本糖警告标签或图片糖警告标签。参与者查看了两种格兰诺拉麦片零食,一种贴有标签,一种未贴标签,并选择其中一种购买。购物后调查测量了次要结果。预测和分析已在www.clinicaltrials.gov(NCT04381481)上预先注册。接触文本或图片糖警告标签的参与者选择贴有标签零食的可能性低于条形码对照组的参与者(分别为21%、18%和34%;警告与对照的两种比较p均<0.001)。相对于条形码对照标签,文本和图片糖警告标签导致更多的关注、预期的社交互动、负面影响、认知加工以及更高的感知信息有效性,同时对产品的健康性、吸引力以及购买或消费意图的感知更低(警告与对照的所有比较p均<0.