为什么卡路里信息对其对食物选择的影响产生混合证据?
Brian A Toney1, Marco A Palma2, Michelle S Segovia3
1Department of Accounting, Finance, Economics, & Business Law, East Texas A&M University, Commerce, USA.
Scientific reports
|November 27, 2025
概括
卡路里标签本身并不能改变食物选择. 预期和实际卡路里之间的差异,称为卡路里差距,显著影响食物选择和摄入量. 这一发现影响了公共卫生政策.
科学领域:
- 行为经济学是一种行为经济学.
- 营养科学 营养科学
- 消费者心理学 消费者心理学
背景情况:
- 之前关于卡路里标签的研究显示出混合的结果,一些研究表明卡路里摄入量减少或无效,而另一些研究显示摄入量增加.
- 现有的文献往往忽略了消费者对卡路里信息的反应期望的作用.
研究的目的:
- 调查消费者对卡路里信息的反应背后的心理机制.
- 为了协调之前的卡路里标签研究中的相互矛盾的发现.
- 为了确定预期和实际卡路里之间的差距是否会影响食物选择.
主要方法:
- 进行了一个框架实地实验,以操纵感知到的卡路里差距.
- 餐点被设计成看起来相似,但卡路里含量显著不同.
- 该研究对食品的视觉呈现进行了控制,以隔离卡路里差距的影响.
主要成果:
- 仅仅是卡路里信息的数值不足以预测其对食物选择的影响.
- 发现一个人的卡路里预期和实际卡路里含量 (卡路里差距) 之间的显著差异是食物选择的关键驱动因素.
- 操纵卡路里差距导致了可预测的食物选择变化.
结论:
- 卡路里干预措施应考虑消费者期望和感知到的卡路里差距,而不仅仅是数值卡路里值.
- 了解卡路里信息反应的心理驱动因素对于有效的公共卫生政策和营养指导至关重要.
- 未来的研究应该集中在饮食决策中的期望,感知和实际卡路里含量之间的相互作用上.
相关概念视频
01:53Cause and Effect
12.0K
While variables are sometimes correlated because one does cause the other, it could also be that some other factor, a confounding variable, is actually causing the systematic movement in our variables of interest. For instance, as sales in ice cream increase, so does the overall rate of crime. Is it possible that indulging in your favorite flavor of ice cream could send you on a crime spree? Or, after committing crime do you think you might decide to treat yourself to a cone?
12.0K
01:19Energy Balance
994
The human body gets energy from the three macronutrients: carbohydrates, proteins, and fats. Energy is released when the chemical bonds in the organic compounds present in the food are broken down. The energy content of food is measured in kilocalories (kcal), defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. This value is determined by measuring the temperature change of the water surrounding a calorimeter after the complete...
994
01:30Regulation of Food Intake
2.2K
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
2.2K
01:31Confirmation Biases
7.6K
The confirmation bias is the tendency to focus on information that confirms our existing beliefs and ignore information that is inconsistent with our expectations. For example, if you think that your professor is not very nice, you notice all of the instances of rude behavior exhibited by the professor while ignoring the countless pleasant interactions he is involved in on a daily basis. Have you ever fallen prey to the confirmation bias, either as the source or target of such bias?
7.6K
01:25Self-Regulation
199
Self-regulation, also known as self-control, encompasses a range of cognitive and behavioral processes that allow individuals to adjust their internal states and outward actions to align with socially acceptable norms and long-term goals. It plays a fundamental role in adaptive functioning, from resisting impulsive behaviors to persisting through challenging tasks. While its benefits are widely recognized, self-regulation is not limitless. Muraven and Baumeister's theory posits that...
199
02:16Self-Schemas
35.3K
In general, a schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
35.3K