Relative effect of warning labels on food choice: Case study with four product categories after the implementation of the Brazilian regulation

IF 4.9 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Quality and Preference Pub Date : 2024-11-05 DOI:10.1016/j.foodqual.2024.105359

Marcela de Alcantara , Inayara Beatriz Araujo Martins , Gastón Ares , Rosires Deliza

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Abstract

Warning labels have been implemented in different countries around the globe, including Brazil, to encourage healthier food choices. The aims of the present study were to evaluate the relative effect of different warning labels, brands and nutrition marketing claims on the food choice after the implementation of the Brazilian front-of package nutrition labelling regulation. Packages of four categories were designed considering the following factors: brand (familiar vs. unfamiliar), nutritional warning (present or absent), textual nutrition marketing claims (present or absent) and visual nutritional marketing claims (present or absent). A total of 850 Brazilian adults were recruited by a marketing agency. Participants were randomly allocated to one of two experimental conditions: black magnifier (n = 403) and black octagon (n = 447). They completed a choice task involving two out of four product categories: chocolate flavored milk, cookies, granola, and iced tea. The packaging was designed considering four factors: The presence of warning labels encouraged product choice in three of the four categories. However, brand and textual nutrition marketing claims had a larger effect. These results suggest the need to introduce comprehensive packaging regulations to reduce the prevalence of nutrition marketing claims on unhealthy products, as well as communication campaigns to raise awareness of the benefits of taking into account warning labels when making food purchases.

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警告标签对食品选择的相对影响：巴西法规实施后四类产品的案例研究

为鼓励人们选择更健康的食品，包括巴西在内的全球不同国家都实施了警示标签。本研究旨在评估巴西包装正面营养标签法规实施后，不同警告标签、品牌和营养营销声称对食品选择的相对影响。研究设计了四类包装，考虑了以下因素：品牌（熟悉与不熟悉）、营养警告（有或无）、文字营养营销声称（有或无）和视觉营养营销声称（有或无）。一家营销机构共招募了 850 名巴西成年人。参与者被随机分配到两种实验条件之一：黑色放大镜（n = 403）和黑色八边形（n = 447）。他们完成了一项选择任务，从巧克力味牛奶、饼干、燕麦片和冰茶四种产品中选择两种。包装设计考虑了四个因素：警示标签的存在鼓励了四类产品中三类产品的选择。然而，品牌和文字营养营销声明的影响更大。这些结果表明，有必要出台全面的包装法规，以减少不健康产品上营养营销声称的普遍性，并开展宣传活动，提高人们对在购买食品时考虑警示标签的益处的认识。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Food Quality and Preference 工程技术-食品科技

CiteScore

10.40

自引率

15.10%

发文量

263

审稿时长

38 days

期刊介绍： Food Quality and Preference is a journal devoted to sensory, consumer and behavioural research in food and non-food products. It publishes original research, critical reviews, and short communications in sensory and consumer science, and sensometrics. In addition, the journal publishes special invited issues on important timely topics and from relevant conferences. These are aimed at bridging the gap between research and application, bringing together authors and readers in consumer and market research, sensory science, sensometrics and sensory evaluation, nutrition and food choice, as well as food research, product development and sensory quality assurance. Submissions to Food Quality and Preference are limited to papers that include some form of human measurement; papers that are limited to physical/chemical measures or the routine application of sensory, consumer or econometric analysis will not be considered unless they specifically make a novel scientific contribution in line with the journal''s coverage as outlined below.