Besson Théo, Durand François, Zerhouni Oulmann
Laboratoire de psychologie sociale, Université Paris Cité, Paris, France.
Laboratoire de Psychologie: Dynamiques Relationnelles Et Processus Identitaires (Psy-DREPI - EA7458), Université de Bourgogne Franche-Comté, Maison de l'Université, Dijon, France.
J Hum Nutr Diet. 2025 Apr;38(2):e70052. doi: 10.1111/jhn.70052.
This study examines the organic halo effect, specifically how organic labels influence perceptions of caloric content and consumption recommendations for high and low calorie food items. Previous research suggests that organic labels can create a perception of healthiness, but it is unclear how these perceptions vary with food calorie content.
An online experiment was conducted with 198 participants, who were randomly assigned to evaluate 20 food items (10 high-calorie and 10 low-calorie) labelled as either organic or conventional. Participants rated the calorie content and recommended consumption frequency of each item using Likert scales. The analysis included multilevel regression models to account for nested data and interactions between labels, calorie content, and participants' propensity to read nutrition information.
The organic label led to a significant underestimation of calorie content for high-calorie items and an overestimation for low-calorie items. Participants who frequently read nutritional information were more sensitive to the organic label, showing a stronger organic halo effect. Consumption frequency recommendations were influenced by the label only for low-calorie items, with conventional items being recommended more frequently.
The study shows that the organic halo effect is more pronounced for high-calorie foods, leading to an underestimation of their calorie content, which may result in occasional overconsumption. Frequent readers of nutritional information are more susceptible to the organic halo effect, contradicting previous findings. The dissociation between calorie perception and consumption frequency highlights the need for clearer nutritional labelling to mitigate misperceptions and support healthier consumer choices. Further research with larger samples and real-world settings is recommended to validate these findings.
本研究考察了有机光环效应,具体而言,即有机标签如何影响对高热量和低热量食品热量含量的认知以及消费建议。先前的研究表明,有机标签会营造出健康的认知,但尚不清楚这些认知如何随食品热量含量而变化。
对198名参与者进行了一项在线实验,他们被随机分配去评估20种标记为有机或传统的食品(10种高热量食品和10种低热量食品)。参与者使用李克特量表对每种食品的热量含量和推荐消费频率进行评分。分析包括多级回归模型,以考虑嵌套数据以及标签、热量含量和参与者阅读营养信息倾向之间的相互作用。
有机标签导致对高热量食品的热量含量显著低估,对低热量食品的热量含量则高估。经常阅读营养信息的参与者对有机标签更为敏感,显示出更强的有机光环效应。消费频率建议仅在低热量食品方面受标签影响,传统食品被推荐的频率更高。
该研究表明,有机光环效应在高热量食品中更为明显,导致对其热量含量的低估,这可能会偶尔导致过度消费。营养信息的频繁阅读者更容易受到有机光环效应的影响,这与先前的研究结果相矛盾。热量认知与消费频率之间的脱节凸显了需要更清晰的营养标签,以减少误解并支持更健康的消费者选择。建议进一步开展更大样本量和真实场景的研究来验证这些发现。