University of South Florida, Tampa, FL, USA.
Appetite. 2016 Oct 1;105:416-22. doi: 10.1016/j.appet.2016.06.007. Epub 2016 Jun 8.
Labeling restaurant menus with calorie counts is a popular public health intervention, but research shows these labels have small, inconsistent effects on behavior. Supplementing calorie counts with physical activity equivalents may produce stronger results, but few studies of these enhanced labels have been conducted, and the labels' potential to influence exercise-related outcomes remains unexplored. This online study evaluated the impact of no information, calories-only, and calories plus equivalent miles of walking labels on fast food item selection and exercise-related attitudes, perceptions, and intentions. Participants (N = 643) were randomly assigned to a labeling condition and completed a menu ordering task followed by measures of exercise-related outcomes. The labels had little effect on ordering behavior, with no significant differences in total calories ordered and counterintuitive increases in calories ordered in the two informational conditions in some item categories. The labels also had little impact on the exercise-related outcomes, though participants in the two informational conditions perceived exercise as less enjoyable than did participants in the no information condition, and trends following the same pattern were found for other exercise-related outcomes. The present findings concur with literature demonstrating small, inconsistent effects of current menu labeling strategies and suggest that alternatives such as traffic light systems should be explored.
在餐厅菜单上标注卡路里含量是一种流行的公共卫生干预措施,但研究表明,这些标签对行为的影响很小且不一致。如果在卡路里含量的基础上补充相应的运动量信息,可能会产生更显著的效果,但目前针对这些增强型标签的研究较少,这些标签对与运动相关的结果的影响仍有待探索。本在线研究评估了无信息、仅卡路里和卡路里加等效步行英里标签对快餐项目选择和与运动相关的态度、看法和意图的影响。参与者(N=643)被随机分配到一个标签条件下,并完成了一个菜单订购任务,然后测量了与运动相关的结果。这些标签对订购行为的影响很小,在总卡路里订购量方面没有显著差异,而且在某些项目类别中,在两个信息条件下,卡路里订购量反而出现了不合常理的增加。这些标签对与运动相关的结果也没有太大影响,尽管两个信息条件下的参与者认为运动不如无信息条件下那么愉快,而且对于其他与运动相关的结果也出现了类似的趋势。本研究结果与现有文献一致,表明当前的菜单标签策略效果较小且不一致,并表明应探索其他替代方案,如红绿灯系统。