Background: Healthy plant-based diets, such as vegan and vegetarian diets, as well as planetary health diets, meet the recommendations of sustainable dietary patterns and are healthier for both the planet and humans. The adoption of these dietary patterns may depend on socio-demographic factors and individual motivations. Aim: This study aimed to analyse the association between socio-demographic factors and knowledge and attitudes towards vegan and vegetarian diets amongst university students. Methods: This anonymous survey included 241 students from a university in rural Poland. The association between respondents’ socio-demographic factors and the investigated categorical variables was analysed. Results: Only three respondents followed a vegan or vegetarian diet during the study. In general, the respondents were unwilling to reduce their meat consumption (55.9%). The willingness to do so was significantly higher amongst women than men (39.4% vs. 15.1%; p = 0.0002), meat avoiders than omnivorous respondents (68.4% vs. 25.0%; p < 0.0001) and health discipline students than non-medical students (47.7% vs. 23.0%; p = 0.0004). Higher awareness of the benefits of plant-based diets was confirmed amongst women, health discipline students and those who avoided meat. Vegan and vegetarian diets were perceived amongst the total number of respondents as more expensive (56.9%) and more difficult to follow compared to omnivore diets (74.7%); in turn, substitutes for animal products were as easily accessible (61.8%). The term ‘planetary health diet’ was used by only 13.7% of the students surveyed. Conclusions: Promoting the benefits of plant-based diets is important, especially in small, traditional communities, where previously acquired patterns mostly determine dietary choices. The inclusion of issues involving planetary health and sustainable diets into curricula and non-medical fields will enable their promotion amongst young adults in general.
AdamczykDMaisonD (2019) Ideology or health – two types of vegetarianism. Journal of Marketing and Market Studies8: 15–24.
2.
AdamczykDModlińskaKMaisonD, et al. (2023) Gender, masculinity, and the perception of vegetarians and vegans: a mixed-methods investigation. Sex Roles89: 595–609.
3.
AgnoliCBaroniLBertiniI, et al. (2023) A comprehensive review of healthy effects of vegetarian diets. Nutrition, Metabolism, and Cardiovascular Diseases33(7): 1308–1315.
4.
Aguirre SánchezLRoa-DíazZMGambaM, et al. (2021) What influences the sustainable food consumption behaviours of university students? A systematic review. International Journal of Public Health66: 1604149.
5.
AllèsBBaudryJMéjeanC, et al. (2017) Comparison of sociodemographic and nutritional characteristics between self-reported vegetarians, vegans, and meat-eaters from the NutriNet-santé study. Nutrients9(9): 1023.
6.
AlmoraieNMAlothmaniNMAlomariWD, et al. (2025) Addressing nutritional issues and eating behaviours among university students: a narrative review. Nutrition Research Reviews38(1): 53–68.
7.
BrunsAGreupnerTNeblJ, et al. (2024) Plant-based diets and cardiovascular risk factors: a comparison of flexitarians, vegans and omnivores in a cross-sectional study. BMC Nutrition10(1): 29.
8.
ClarkMASpringmannMHillJ, et al. (2019) Multiple health and environmental impacts of foods. Proceedings of the National Academy of Sciences of the United States of America116(46): 23357–23362.
9.
DaveyGKSpencerEAApplebyPN, et al. (2003) EPIC-Oxford: lifestyle characteristics and nutrient intakes in a cohort of 33 883 meat-eaters and 31 546 non meat-eaters in the UK. Public Health Nutrition6(3): 259–268.
10.
EstruchRSacanellaERosE (2021) Should we all go pesco-vegetarian?European Heart Journal42(12): 1144–1146.
11.
Font-i-FurnolsM (2023) Meat consumption, sustainability and alternatives: an overview of motives and barriers. Foods (Basel, Switzerland)12(11): 2144.
12.
Forsa Gesellschaft für Sozialforschung und statistische Analysen. (2023) Plant-based nutrition. Results of a representative population survey.
13.
HargreavesSMRosenfeldDLMoreiraA, et al. (2023) Plant-based and vegetarian diets: an overview and definition of these dietary patterns. European Journal of Nutrition62(3): 1109–1121.
14.
HopwoodCJBleidornWSchwabaT, et al. (2020) Health, environmental, and animal rights motives for vegetarian eating. PLOS One15(4): e0230609.
15.
HozyaszKK (2019) Comment on periodic vegetarianism and the first mentions of a plant diet in Poland. Roczniki Panstwowego Zakladu Higieny70(4): 431.
16.
Irazusta-GarmendiaAOrpíEBach-FaigA, et al. (2023) Food sustainability knowledge, attitudes, and dietary habits among students and professionals of the health sciences. Nutrients15(9): 2064.
17.
JürkenbeckKSpillerASchulzeM (2021) Climate change awareness of the young generation and its impact on their diet. Cleaner and Responsible Consumption3: 100041.
18.
KeyTJApplebyPNSpencerEA, et al. (2009) Mortality in British vegetarians: results from the European prospective investigation into cancer and nutrition (EPIC-Oxford). The American Journal of Clinical Nutrition89(5): 1613S–1619S.
19.
KlugABarbareskoJAlexyU, et al. (2024) Update of the DGE position on vegan diet – position statement of the German nutrition society (DGE). Ernahrungs Umschau71(7): 60–84.
20.
KlünderVSchwenkePHertigE, et al. (2022) A cross-sectional study on the knowledge of and interest in Planetary Health in health-related study programmes in Germany. Frontiers in Public Health10: 937854.
21.
KnaapilaAMichelFJouppilaK, et al. (2022) Millennials’ consumption of and attitudes toward meat and plant-based meat alternatives by consumer segment in Finland. Foods (Basel, Switzerland)11(3): 456.
22.
Kosicka-GębskaMJeżewska-ZychowiczMSajdakowskaM, et al. (2025) Polish consumers’ attachment to meat: food and plant-based meat alternative choices. Nutrients17(8): 1332.
23.
KwasnyTDobernigKRieflerP (2022) Towards reduced meat consumption: a systematic literature review of intervention effectiveness, 2001-2019. Appetite168: 105739.
24.
KyrkouCTsakoumakiFFotiouM, et al. (2018) Changing trends in nutritional behavior among university students in Greece, between 2006 and 2016. Nutrients10(1): 64.
25.
LeahyELyonsSTolR (2010) An estimate of the number of vegetarians in the world. ESRI Working Paper, No. 340, The Economic and Social Research Institute (ESRI), Dublin.
26.
McCormackJRutherfordSRossLJ, et al. (2023) How do dietetics students learn about sustainability? A scoping review. Nutrition & Dietetics: The Journal of the Dietitians Association of Australia80(2): 143–153.
27.
MeixnerOMalleierMHaasR (2024) Towards sustainable eating habits of generation Z: perception of and willingness to pay for plant-based meat alternatives. Sustainability16(8): 3414.
28.
MensinkGBMBarbosaCLBrettschneiderAK (2016) Prevalence of persons following a vegetarian diet in Germany. Journal of Health Monitoring1(2): 2–14.
29.
MikiAJLivingstonKAKarlsenMC, et al. (2020) Using evidence mapping to examine motivations for following plant-based diets. Current Developments in Nutrition4(3): nzaa013.
30.
MorozMOlszewskaMKurpiewskaM, et al. (2021) Ecological awareness and gender - results of a survey conducted among students of selected universities in Podlasie. Academy of Management5(3): 254–267.
31.
Muñoz-MartínezJCarrillo-ÁlvarezEJaniszewskaK (2023) European dietitians as key agents of the green transition: an exploratory study of their knowledge, attitudes, practices, and training. Frontiers in Nutrition10: 1129052.
32.
MusicusAAWangDDJaniszewskiM, et al. (2022) Health and environmental impacts of plant-rich dietary patterns: a US prospective cohort study. The Lancet Planetary Health6(11): e892–e900.
33.
MüssigMPfeilerTMEgloffB (2022) Why they eat what they eat: Comparing 18 eating motives among omnivores and veg*ns. Frontiers in Nutrition9: 780614.
34.
OrlichMJFraserGE (2014) Vegetarian diets in the Adventist Health Study 2: a review of initial published findings. The American Journal of Clinical Nutrition100(Suppl 1): 353S–358S.
35.
OrlichMJSinghPNSabatéJ, et al. (2013) Vegetarian dietary patterns and mortality in Adventist Health Study 2. JAMA Internal Medicine173(13): 1230–1238.
36.
Ortiz-MoncadaRMorales-Suárez-VarelaMAvecilla-BenítezÁ, et al. (2019) Grupo de Investigación UniHcos. Factors associated with meat consumption in students of Spanish universities: UniHcos project. International Journal of Environmental Research and Public Health16(20): 3924.
37.
Oui Chef Food Service. (2020) Characteristics of people who follow vegetarian diets in Poland in 2020 [Graph]. In Statista (accessed 20 May 2025).
38.
PapierKApplebyPNFensomGK, et al. (2019) Vegetarian diets and risk of hospitalisation or death with diabetes in British adults: results from the EPIC-Oxford study. Nutrition & Diabetes9(1): 7.
39.
RajSGuestNSLandryMJ, et al. (2025) Vegetarian dietary patterns for adults: a position paper of the academy of nutrition and dietetics. Journal of the Academy of Nutrition and Dietetics125(6): 831–846.e2.
40.
RampalliKKBlakeCEFrongilloEA, et al. (2023) Why understanding food choice is crucial to transform food systems for human and planetary health. BMJ Global Health8(5): e010876.
RaptouETsiamiANegroG, et al. (2024) Gen Z's Willingness to adopt plant-based diets: empirical evidence from Greece, India, and the UK. Foods (Basel, Switzerland)13(13): 2076.
43.
ScheelbeekPGreenRPapierK, et al. (2020) Health impacts and environmental footprints of diets that meet the Eatwell Guide recommendations: analyses of multiple UK studies. BMJ Open10(8): e037554.
44.
SchenkPRösselJScholzM (2018) Motivations and constraints of meat avoidance. Sustainability10(11): 3858.
45.
Segovia-SiapcoGSabatéJ (2019) Health and sustainability outcomes of vegetarian dietary patterns: a revisit of the EPIC-Oxford and the Adventist Health Study-2 cohorts. European Journal of Clinical Nutrition72(Suppl 1): 60–70.
46.
SeguinNSelvambRMolooH (2021) Contextually relevant healthcare professional education: WHY planetary health is essential in every curriculum now. The Journal of Climate Change and Health4: 100044.
47.
The Smart Protein Project. (2023) Evolving appetites: an in depth look at European attitudes towards plant based eating. A follow up to the 2021 survey report, ‘What Consumers Want’. European Union’s Horizon 2020 research and innovation programme (No 862957).
48.
SpringmannMWiebeKMason-D'CrozD, et al. (2018) Health and nutritional aspects of sustainable diet strategies and their association with environmental impacts: a global modelling analysis with country-level detail. The Lancet Planetary Health2(10): e451–e461.
StorzMA (2022) What makes a plant-based diet? A review of current concepts and proposal for a standardized plant-based dietary intervention checklist. European Journal of Clinical Nutrition76(6): 789–800.
51.
SzczebyłoARejmanKHalickaE, et al. (2020) Towards more sustainable diets—attitudes, opportunities and barriers to fostering pulse consumption in Polish cities. Nutrients12(6): 1589.
52.
TilmanDClarkM (2014) Global diets link environmental sustainability and human health. Nature515(7528): 518–522.
VelzeboerRLiEGaoNSharpPOliffeJL (2024) Masculinity, meat, and veg*nism: a scoping review. American Journal of Men's Health18(2).
55.
VerainMCDDagevosH (2022) Comparing meat abstainers with avid meat eaters and committed meat reducers. Frontiers in Nutrition9: 1016858.
56.
WeberAKroissKReismannL, et al. (2023) Health-promoting and sustainable behavior in university students in Germany: a cross-sectional study. International Journal of Environmental Research and Public Health20(7): 5238.
57.
WillettWRockströmJLokenB, et al. (2019) Food in the Anthropocene: the EAT-Lancet Commission on healthy diets from sustainable food systems. The Lancet393(10170): 447–492.
58.
WinpennyEMSmithMPenneyT, et al. (2020) Changes in physical activity, diet, and body weight across the education and employment transitions of early adulthood: a systematic review and meta-analysis. Obesity Reviews21(4): e12962.
59.
World Heart Federation. (2023) World heart report 2023: confronting the world’s number one killer. World Heart Federation, Geneva, Switzerland.
60.
WozniakHLarpinCDe MestralC, et al. (2020) Vegetarian, pescatarian and flexitarian diets: sociodemographic determinants and association with cardiovascular risk factors in a Swiss urban population. British Journal of Nutrition124(8): 844–852.
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