Meta-analysis of personality trait differences between omnivores, vegetarians, and vegans

Reist, Marina E.; Bleidorn, Wiebke; Milfont, Taciano L.; Hopwood, Christopher J.

doi:10.1016/j.appet.2023.107085

Cited by 6 publications

(3 citation statements)

References 55 publications

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“…These effects, albeit small, are consistent with recent findings about personality-attitude links in other domains of prosocial behavior like volunteering, charitable giving, or proenvironmental engagement Stahlmann et al, 2023;Zhao et al, 2017). Especially the links with agreeableness and openness contribute to an emerging picture of a personality profile that predisposes people to invest in prosocial behaviors despite the fact that there may be tangible costs or risks (Hopwood et al, 2022;Reist et al, 2023;Smillie et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Big Five personality traits and vaccination: A systematic review and meta-analysis

Bleidorn,

Stahlmann,

Hopwood

2024

Preprint

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Objective: Despite the proven benefits of vaccination, people differ in their willingness to get vaccinated. These differences are the result of multiple factors, including social, cultural, and psychological variables. This meta-analysis estimated the effects of people’s Big Five personality traits on their vaccination attitudes, intentions, and behaviors and examined the role of theoretically and empirically derived moderator variables. Methods: We meta-analyzed data from 28 studies that sampled over 48,000 individuals to estimate the effects of Big Five personality traits on vaccination attitudes, intentions, and behaviors. In addition, we tested the moderating effects of age, gender, sample region, sample type (representative vs. convenience), vaccination measure (attitude, intention, behavior, compound), vaccination type (COVID-19, Influenza, or other), and reliability of the Big Five measure on the links between personality traits and vaccination.Results: People with high levels in agreeableness and extraversion, and low levels in neuroticism reported more positive attitudes towards vaccination, while open people reported stronger intentions to get vaccinated. Open and agreeable people were also more positive about novel COVID-19 vaccines, whereas extraverted people were more positive about Influenza vaccines. There were no effects for conscientiousness. Overall, effect sizes were small but generalized across age. Other moderator effects suggested a more nuanced picture across cultural regions, sample types, and gender. Conclusions: The findings provide a compelling picture of significant, albeit small, effects of personality traits on vaccination. Questions remain about the processes through which personality traits may affect vaccination attitudes, intentions, and potentially also behavior.

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Section: Discussionmentioning

confidence: 99%

Big Five personality traits and vaccination: A systematic review and meta-analysis

Bleidorn,

Stahlmann,

Hopwood

2024

Preprint

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“…Vegetarianism encompasses a total elimination of meat, fish, and any meat-based products from the diet, while veganism means a complete elimination of all animal-derived Sustainability 2024, 16, 249. https://doi.org/10.3390/su16010249 https://www.mdpi.com/journal/sustainability products, including milk, dairy products, and eggs [1,2]. Diets characterized by the reduction or elimination of foods of animal origin have been recently growing in popularity [3,4]. Among the main motivations for adopting a vegetarian or a vegan diet, consumers most frequently mention ethical (related to the farm animal welfare), health, and environmental reasons [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Diets characterized by the reduction or elimination of foods of animal origin have been recently growing in popularity [3,4]. Among the main motivations for adopting a vegetarian or a vegan diet, consumers most frequently mention ethical (related to the farm animal welfare), health, and environmental reasons [4][5][6][7]. It is important to investigate various health and sustainability dimensions of such diets, as part of a broader context of food systems transformation and potential for reaching the Sustainable Development Goals (SDGs) [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Environmental Indicators of Vegan and Vegetarian Diets: A Pilot Study in a Group of Young Adult Female Consumers in Poland

Góralska-Walczak,

Kopczyńska,

Kazimierczak

et al. 2023

Sustainability

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It has been broadly reported that the production of animal-derived foods significantly contributes to the environmental footprint of the agri-food sector, considering, among others, such indicators as land use, greenhouse gas emissions, and the water footprint. However, the environmental sustainability aspects of whole diets (i.e., more plant-based vs. meat-containing) have been studied so far to a limited extent, in many cases not taking into consideration various regional settings, which to a great extent determine meat- and other animal-derived foods’ substitutes consumed by vegetarians and vegans. The aim of this study was therefore to assess the environmental indicators of vegetarian, vegan, and meat-containing diets of a selected group of Polish consumers. Based on three-day food records of 24 respondents and the published data on the environmental footprint of a range of foodstuffs, the three dietary environmental indicators were calculated. In addition, the results were standardized in terms of dietary protein intake and energy value. The study showed the elimination of meat and other animal-derived foods from the respondents’ diet was predominantly motivated by their concerns related to animal welfare issues, which appeared to be a stronger factor than the willingness to reduce the diets’ environmental footprint. Following the results standardization, the studied vegetarian and vegan diets were characterized by 47.0% and 64.4% lower carbon footprint, 32.2% and 60.9% lower land use indicators, and 37.1% and 62.9% lower water footprints, respectively, compared to the meat-containing diet. Animal-derived foods, including milk and dairy, appeared to be the main contributors to all three environmental footprint indicators of both the meat-containing and the vegetarian diets. In the vegan group, the environmental footprint was found to be mainly influenced by the consumption of legumes and legume-based foods, cereal products, potatoes, sugar, products containing cocoa and vegetables, with nuts showing especially significant contribution to the fresh water consumption. The study confirms moving towards more plant-based diet has a potential to significantly reduce the diet’s environmental footprint. It also contributes to creating a ‘roadmap’ for consumers, to encourage them to plan their diets responsibly, taking into consideration both the health and the environmental sustainability aspects.

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The association between food neophobia, bi-dimensional aspects of orthorexia, and anxiety among vegetarians and omnivores

Bellikci Koyu,

Karaağaç,

Öner

2024

Appetite

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Meta-analysis of personality trait differences between omnivores, vegetarians, and vegans

Cited by 6 publications

References 55 publications

Big Five personality traits and vaccination: A systematic review and meta-analysis

Big Five personality traits and vaccination: A systematic review and meta-analysis

Environmental Indicators of Vegan and Vegetarian Diets: A Pilot Study in a Group of Young Adult Female Consumers in Poland

The association between food neophobia, bi-dimensional aspects of orthorexia, and anxiety among vegetarians and omnivores

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