Mora-Plazas Mercedes, Aida Higgins Isabella Carolyn, Gomez Luis Fernando, Hall Marissa, Parra Maria Fernanda, Bercholz Maxime, Murukutla Nandita, Taillie Lindsey Smith
Departamento de Nutrición Humana, Universidad Nacional de Colombia, Bogotá, Colombia.
Carolina Population Center, University of North Carolina, Chapel Hill, North Carolina, United States of America.
PLoS One. 2022 Feb 10;17(2):e0263324. doi: 10.1371/journal.pone.0263324. eCollection 2022.
This study assessed nutrient warnings' impact on product selection and identification of food products high in nutrients of concern in Colombia.
In an online experiment (October 2020), 8,061 Colombians were randomized to a nutrient warning, guideline daily amounts (GDA), Nutri-Score, or no-label condition. They viewed two fruit drinks labeled according to their condition, one high in sugar and one not, and completed selection tasks. Next, they assessed four products high in sugar, sodium, and/or saturated fat ("high in" product). Finally, they selected which label would most discourage them from consuming a "high in" product.
The nutrient warning performed better on most outcomes. Twenty percent of participants exposed to the nutrient warning would purchase the high-sugar fruit drink compared to GDA (24%, p<0.01), Nutri-Score (33%, p<0.001), and no label (29%, p<0.001). GDA performed slightly better than the nutrient warning in identifying the high-sugar fruit drink (91% vs 88%, p<0.001). The nutrient warning best helped participants correctly identify other "high in" products (75% vs. 23% no-label, 26% Nutri-Score, and 43% GDA, all p<0.001) and had the highest perceived message effectiveness (3.86 on 5-point scale vs. 2.97 GDA and 2.70 Nutri-Score, both p<0.001) and lowest likelihood of purchasing "high in" products (2.58 on 5-point scale vs. 3.23 GDA, 3.49 Nutri-Score, and 3.51 no label, all p<0.001). The nutrient warning most discouraged participants from wanting to consume "high in" products.
Nutrient warnings are a promising policy to help consumers identify and discourage consumption of products high in nutrients of concern.
Trial Registration: NCT04567004.
本研究评估了营养警示对哥伦比亚食品产品选择的影响以及对高关注营养素食品的识别情况。
在一项在线实验（2020年10月）中，8061名哥伦比亚人被随机分配到营养警示组、每日膳食营养素参考摄入量（GDA）组、营养评分组或无标签组。他们根据各自所在组的情况查看两种水果饮料标签，一种含糖量高，一种含糖量低，并完成选择任务。接下来，他们评估四种高糖、高钠和/或高脂肪的产品（“高含量”产品）。最后，他们选择哪种标签最能阻止他们消费“高含量”产品。
营养警示在大多数结果方面表现更好。与GDA组（24%，p<0.01）、营养评分组（33%，p<0.001）和无标签组（29%，p<0.001）相比，接触营养警示的参与者中有20%会购买高糖水果饮料。在识别高糖水果饮料方面，GDA组的表现略优于营养警示组（91%对88%，p<0.001）。营养警示最有助于参与者正确识别其他“高含量”产品（75%，无标签组为23%，营养评分组为26%，GDA组为43%，p均<0.001），且具有最高的感知信息有效性（5分制中为3.86，GDA组为2.97，营养评分组为2.70，p均<0.001）以及购买“高含量”产品的可能性最低（5分制中为2.58，GDA组为3.23，营养评分组为3.49，无标签组为3.51，p均<0.001）。营养警示最能阻止参与者消费“高含量”产品。
营养警示是一项有前景的政策，有助于消费者识别并减少对高关注营养素产品的消费。
试验注册号：NCT04567004。
