Department of Psychology, Colorado State University, Fort Collins, CO 80523, USA.
Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO 80523, USA.
Int J Environ Res Public Health. 2021 Feb 11;18(4):1761. doi: 10.3390/ijerph18041761.
US Public Law 114-216 dictates that food producers in the United States of America will be required to label foods containing genetically modified organisms (GMOs) starting in 2022; however, there is little empirical evidence demonstrating how U.S. consumers would use food labels that indicate the presence or absence of GMOs. The aim of this two-phase study was to determine how attitudes towards GMOs relate to food choices and how labels indicating the presence or absence of GMOs differentially impact choices among college students-the age group which values transparent food labeling more than any other. Participants ( = 434) made yes/no choices for each of 64 foods. In both phases of the study, participants were randomly assigned to seeing GMO Free labels, contains GMOs labels, or no GMO labels. Across the two phases, 85% of participants reported believing that GMOs were at least somewhat dangerous to health (42% believed GMOs to be dangerous), yet in both studies, although eye-tracking data verified that participants attended to the GMO labels, these labels did not significantly affect food choices. Although college consumers may believe GMOs to be dangerous, their food choices do not reflect this belief.
美国公共法 114-216 规定，自 2022 年起，美国的食品生产商将被要求对含有转基因生物 (GMO) 的食品进行标注；然而，几乎没有实证证据表明美国消费者将如何使用表明是否存在 GMO 的食品标签。这项两阶段研究的目的是确定对 GMO 的态度如何与食物选择相关，以及表明是否存在 GMO 的标签如何对大学生（比其他任何群体都更重视食品标签透明度的年龄群体）的选择产生不同影响。参与者（n=434）对 64 种食品中的每一种都进行了是/否选择。在研究的两个阶段中，参与者被随机分配到看到“无 GMO”标签、“含有 GMO”标签或没有 GMO 标签的组。在两个阶段中，85%的参与者表示他们认为 GMO 对健康至少有一定危害（42%的人认为 GMO 是危险的），但在两项研究中，尽管眼动追踪数据证实参与者注意到了 GMO 标签，但这些标签并没有显著影响食物选择。尽管大学生消费者可能认为 GMO 是危险的，但他们的食物选择并未反映出这种信念。
