Faculty of Economics and Business, University of Granada, Spain.
Department of Psychology, University of California, Los Angeles, USA.
Appetite. 2021 Aug 1;163:105243. doi: 10.1016/j.appet.2021.105243. Epub 2021 Apr 2.
Plant-based diets are beneficial to human health and environmental sustainability but suffer from low rates of adherence. For example, many people who self-identify as vegetarian sporadically eat meat and eventually give up their vegetarian diet entirely. We theorize that valuing a lifestyle of pro-environmental behaviors can enable people to adhere to a plant-based diet more successfully. In the current survey study, we tested this prediction among plant-based dieters for two outcomes: short-term adherence (for the past three days) and future-intended dietary adherence (intention to continue one's diet for the next 1-2 years). Over and above other dietary, motivational, and demographic factors, pro-environmental behavior positively predicted both short-term and future-intended adherence to plant-based diets. Moreover, pro-environmental behavior mediated links between (a) connectedness to nature and dietary adherence and (b) political ideology and dietary adherence. These findings highlight pro-environmental behavior as a tool for explaining and predicting adherence to plant-based diets.
植物性饮食有益于人类健康和环境可持续性，但坚持率较低。例如，许多自认为是素食者的人会偶尔吃肉，最终完全放弃素食。我们推测，重视有利于环境的生活方式可以使人们更成功地坚持植物性饮食。在当前的调查研究中，我们在素食者中测试了这一预测，针对两个结果：短期坚持（过去三天）和未来预期的饮食坚持（打算在未来 1-2 年内继续自己的饮食）。除了其他饮食、动机和人口统计学因素外，亲环境行为积极预测了短期和未来预期的植物性饮食坚持。此外，亲环境行为在（a）与自然的联系和饮食坚持之间以及（b）政治意识形态和饮食坚持之间的联系中起中介作用。这些发现强调了亲环境行为作为解释和预测植物性饮食坚持的工具。
