Using social norms to encourage healthier eating
Using social norms to encourage healthier eating
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DOI：
10.1111/nbu.12371
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发表时间：
2019-03-01
影响因子：
3.3
通讯作者：
Thomas, J. M.
中科院分区：
文献类型：
--
作者：
Higgs, S.;Liu, J.;Thomas, J. M.
人们选择吃什么和吃多少受社会背景的影响。人们倾向于以他人的饮食习惯作为适当消费的指南。这表明，鼓励健康饮食的一种方法是提供有关其他人健康饮食选择的信息。作为经济和社会研究委员会资助的项目的一部分进行的研究调查了在实验室和实地环境（餐馆）中提供有关他人如何饮食的信息对蔬菜购买和消费的影响。在一项基于实验室的研究中，我们发现，虽然整体蔬菜摄入量没有增加，但接触一种新的“喜欢规范”信息会增加参与者对自助餐中西兰花的选择和摄入量，这些参与者是低习惯性蔬菜消费者。我们还发现，即使在接触信息和选择自助餐之间存在延迟，喜欢规范也会增加西兰花的摄入量，这表明社交信息接触的影响可能会持续到最初接触之后。在两项在线研究和一项实验室研究中，我们发现，暴露于描述性社会规范信息对饮食意图和摄入量的影响受到参与者认同规范参照组的动机的调节。在三项干预研究中，暴露于社会规范信息与在餐馆环境中购买蔬菜餐的增加有关。总之，这些结果表明，在餐厅环境中使用社会规范信息是可行的，它们提供的信息可用于实施随机对照试验。
What and how much people choose to eat is influenced by social context. People tend to use the eating habits of others as a guide to appropriate consumption. This suggests that one way of encouraging healthier eating would be to provide information about the healthy eating choices of others. Research conducted as part of an Economic and Social Research Council-funded project investigated the effect of providing information about how others eat on the purchase and consumption of vegetables in both laboratory and in field settings (restaurants). In a laboratory-based study, we found that that while overall vegetable intake was not increased, exposure to a novel 'liking norm' message increased the selection and intake of broccoli from a buffet by participants who were low habitual consumers of vegetables. We also found that the liking norm increased broccoli intake even when there was a delay between exposure to the message and selection at the buffet, suggesting that the effects of social message exposure may persist beyond initial exposure. In two online studies and a laboratory study, we found that the effect of exposure to a descriptive social norm message on eating intentions and intake was moderated by the participants' motivation to identify with the norm referent group. In three intervention studies, exposure to social norm messaging was associated with increased purchases of meals with vegetables in restaurant settings. Taken together, these results suggest that it is feasible to use social norm messages in restaurant settings and they provide information that could be used to implement randomised controlled trials.