Rising adoption and retention of meat-free diets in online recipe data
Rising adoption and retention of meat-free diets in online recipe data
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DOI：
10.1038/s41893-019-0316-0
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发表时间：
2019-07-01
影响因子：
27.6
通讯作者：
Biermann, Gesa
中科院分区：
文献类型：
--
作者：
Asano, Yuki M.;Biermann, Gesa
目前对动物蛋白的需求不断增长，通过土地使用变化、水资源使用和温室气体排放等多种影响对环境造成巨大压力。通过过渡到主要以植物为基础的饮食来抑制肉类需求是提高粮食系统可持续性的关键。在这项研究中，我们通过分析来自最受欢迎的德国食谱网站的240，000多个食谱的数据集以及250万用户评级来调查饮食转变。我们发现提交的素食和纯素食谱有所增加，年增长率分别为16%和3.5%。我们进一步发现，在过去8年中，转向这些饮食并保持这些饮食的用户数量持续相对增加。我们表明，过渡是缓解最初切换到素食，类似于肉类为基础的成分构成。这些发现得到了最近改变饮食的用户的定性访谈的证实。我们的研究结果展示了食谱元数据的应用，以确定个人的饮食选择和大规模的食品趋势，并确定更可持续的食品系统的途径。
The current and growing demand for animal protein exerts immense pressure on the environment through diverse effects such as land-use change, water use and greenhouse gas emissions. Curbing meat demand by transitioning to largely plant-based diets is key to increasing food system sustainability. In this study, we investigate dietary transitions by analysing a dataset of over 240,000 recipes with 2.5 million user ratings from the most popular German recipe website. We find an increase in the vegetarian and vegan recipes submitted, with annual growth rates of 16% and 3.5%, respectively. We further detect a consistent relative increase in the number of users switching to these diets and maintaining them over the last 8 years. We show that the transition is eased by initially switching to vegetarian diets that resemble meat-based ones in their ingredient makeup. These findings are corroborated by qualitative interviews with users who have recently switched diets. Our results demonstrate the application of recipe metadata to determine individuals' dietary choices and large-scale food trends, and identify pathways to a more sustainable food system.