Abstract Vegetarianism and veganism are often grouped together in nutritional and psychological investigations. Yet an emerging body of literature has highlighted that vegetarians and vegans differ along a number of neurological, attitudinal, and behavioral variables. In this research, I found that vegetarians and vegans exhibit different dietarian identity profiles. Compared to vegetarians, vegans saw their dietary patterns as more intertwined with their identity (higher centrality), had more positive feelings toward their dietary in-group (higher private regard), felt as if other people judge them more negatively for following their dietary patterns (lower public regard), evaluated out-group dieters more negatively (lower out-group regard), and had stronger motivations for following their dietary patterns (higher prosocial, personal, and moral motivations). By distinguishing between vegetarians and vegans more concretely, investigators can capture meaningful within-group heterogeneity in how people think, feel, and behave when it comes to eschewing animal products.

中文翻译：

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素食者和纯素食者的饮食身份特征比较

摘要 在营养和心理调查中，素食主义和纯素食主义经常被归为一类。然而，越来越多的文献强调素食者和纯素食者在许多神经、态度和行为变量方面存在差异。在这项研究中，我发现素食者和纯素食者表现出不同的饮食身份特征。与素食者相比，素食者认为他们的饮食模式与他们的身份更加交织（更高的中心性），对他们的饮食内群体有更积极的感觉（更高的私人关注），感觉好像其他人对他们遵循他们的饮食模式的评价更消极（较低的公众关注度），更负面地评价外群节食者（较低的外群关注度），并且有更强烈的动机来遵循他们的饮食模式（更高的亲社会、个人、和道德动机）。通过更具体地区分素食者和纯素食者，研究人员可以捕捉到人们在避免使用动物产品时如何思考、感受和行为的有意义的群体内异质性。