包装正面营养标签对消费者购买意愿的影响：一项在墨西哥低收入和中等收入成年人中进行的随机试验。
Impact of front-of-pack nutrition labels on consumer purchasing intentions: a randomized experiment in low- and middle-income Mexican adults.
机构信息
Nutrition and Health Research Center, Mexican National Institute of Public Health, Av. Universidad 655 Col. Santa María Ahuacatitlán, CP. 62100, Cuernavaca, Morelos, Mexico.
School of Public Health, Mexican National Institute of Public Health, Av. Universidad 655 Col. Santa María Ahuacatitlán, CP. 62100, Cuernavaca, Mexico.
出版信息
BMC Public Health. 2020 Apr 6;20(1):463. doi: 10.1186/s12889-020-08549-0.
BACKGROUND
Front-of-pack (FOP) nutrition labeling is a cost-effective strategy to help consumers make informed and healthier food choices. We aimed to investigate the effect of the FOP labels used in the Latin American region on consumers' shopping intentions when prompted to make their choices with specific nutrients-to-limit in mind among low- and middle-income Mexican adults (> 18 y).
METHODS
In this experimental study of an online simulated shopping situation participants (n = 2194) were randomly assigned to one of three labeling conditions: Guideline Daily Amounts (GDA), Multiple Traffic Lights (MTL), or red Warning Labels (WL). Participants were required to view a video explaining how to correctly interpret the assigned label. Primary outcomes were the overall nutritional quality (estimated using the Nutrient Profiling Scoring Criterion [NPSC] and NPSC baseline score) and mean energy and nutrient content of purchases. Secondary outcomes included shopping time variables. We also evaluated the impact of the labels across food categories (ready-made foods, dairy beverages, non-dairy beverages, salty snacks, and breakfast cereals) and sociodemographic subgroups.
RESULTS
The MTL and the WL led to a better overall nutritional quality of the shopping cart compared to the GDA (p < 0.05). According to the NPSC score, the WL led to a better nutritional quality across breakfast cereals and salty snacks compared to the GDA (p < 0.05); a similar effect was observed for the MTL among non-dairy beverages (p < 0.05). The MTL and the WL required shorter shopping times compared to GDA (p < 0.05). Across all labeling conditions, the nutritional quality of the shopping cart tended to be lower among those with low income, education and nutrition knowledge levels.
CONCLUSION
WL and MTL may foster healthier food choices in a faster way among low- and middle-income groups in Mexico. To produce an equitable impact among consumers of all socioeconomic strata, efforts beyond simply the inclusion of a communication campaign on how to use and interpret FOP labels will be required.
TRIAL REGISTRATION
clinicaltrials.gov. NCT04308408 Retrospectively registered March 16, 2020.
背景
包装正面（FOP）营养标签是一种具有成本效益的策略，可以帮助消费者做出明智且更健康的食物选择。我们旨在研究拉丁美洲地区使用的 FOP 标签对有选择地考虑限制某些营养素的购物者的选择意愿的影响，这些购物者是来自墨西哥的低收入和中等收入成年人（>18 岁）。
方法
在这项关于在线模拟购物情况的实验性研究中，参与者（n=2194）被随机分配到以下三种标签条件之一： 每日摄入量指南（GDA）、 多重交通信号灯（MTL）或红色警告标签（WL）。 要求参与者观看一段视频，了解如何正确解释所分配的标签。 主要结果是整体营养质量（使用营养成分评分标准[NPSC]和 NPSC 基线评分进行估计）和购买的平均能量和营养素含量。 次要结果包括购物时间变量。 我们还评估了标签在不同食品类别（即食食品、乳制品饮料、非乳制品饮料、咸零食和早餐麦片）和社会人口统计学亚组中的影响。
结果
与 GDA 相比，MTL 和 WL 导致购物车的整体营养质量更好（p<0.05）。 根据 NPSC 评分，与 GDA 相比，WL 使早餐麦片和咸零食的营养质量更好（p<0.05）；在非乳制品饮料中也观察到 MTL 的类似效果（p<0.05）。 MTL 和 WL 与 GDA 相比，购物时间更短（p<0.05）。 在所有标签条件下，收入低、教育程度低和营养知识水平低的购物者的购物车营养质量往往较低。
结论
在墨西哥的低收入和中等收入群体中，WL 和 MTL 可能以更快的方式促进更健康的食物选择。 为了在所有社会经济阶层的消费者中产生公平的影响，除了开展关于如何使用和解释 FOP 标签的宣传活动之外，还需要做出其他努力。
试验注册
clinicaltrials.gov。NCT04308408 于 2020 年 3 月 16 日回顾性注册。
Zotero 插件