Are Color-Coded Nutrition Labels a Good Idea?

They seem to be, at least for people who normally lack self-control when it comes to food. From a new study led by Joerg Koenigstorfer:

This article investigates whether traffic light color-coded nutrition information helps low- (vs. high-) self-control consumers make more healthful food choices within a given product category. Two in-store lab studies assess the effects of traffic light colors. The colors indicate low (green), medium (amber), and high (red) levels of four negative food nutrients (sugar, fat, saturated fat, and salt). The color-coding was implemented on nutrition labeling schemes shown on the front of actual food packages (pasta meals in Study 1; cereal bars in Study 2). Consumers with low self-control to resist food temptations, but not those with high self-control, make more healthful food choices in response to the color-coded labeling. The behavior is congruent with their long-term goals of controlling their food choices and is evident when traffic light colors vary between both nutrients and products (Study 1) and when traffic light colors vary between nutrients but not products (Study 2). The authors derive theoretical implications and draw conclusions from the perspectives of public policy, retailing, and manufacturers.

 

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