OBESITY AND SOCIAL INEQUALITIES: HOW SOCIOECONOMIC FACTORS AFFECT HEALTH
Abstract
Background: Obesity represents one of the greatest public health challenges of the 21st century. Its prevalence is strongly linked to socioeconomic factors rather than being solely the result of individual dietary choices or lifestyle behaviors. According to the World Health Organization (WHO), obesity is a consequence of excessive fat accumulation leading to metabolic disorders, an increased risk of cardiovascular diseases, type 2 diabetes, and premature mortality. Over the past decades, the global prevalence of obesity has risen dramatically, increasingly affecting individuals with lower socioeconomic status. This highlights the need to analyze the social determinants underlying this phenomenon.
Objective: The aim of this paper was to present and analyze the current state of knowledge regarding the impact of socioeconomic factors, such as education level, income, place of residence, and access to healthcare, on the prevalence of obesity, as well as to discuss their health and social consequences.
Methods: A literature review was conducted using scientific databases including PubMed and Google Scholar, as well as reports from international organizations such as the World Health Organization (WHO) and the Organisation for Economic Co-operation and Development (OECD). The search focused on recent publications examining the relationship between socioeconomic status and obesity. The review included original studies, review papers, and reports analyzing the effects of education, income, place of residence, and healthcare accessibility on obesity risk and its health outcomes.
Results: The analysis revealed that individuals with lower socioeconomic status are significantly more likely to suffer from overweight and obesity. Contributing factors include limited access to healthy foods, infrastructure that promotes physical activity, preventive healthcare, and health education. Residents of areas with lower socioeconomic development are more exposed to phenomena such as “food deserts” and “food swamps,” which promote unhealthy eating habits. Furthermore, people living with obesity often experience stigma and discrimination, leading to reduced quality of life and lower treatment effectiveness.
Conclusions: Obesity is not only a medical issue but also a social one, deeply rooted in socioeconomic structures. Effective prevention requires an integrated, systemic approach that combines actions in education, health policy, and urban planning. Key measures include improving access to healthy food, developing infrastructure that supports physical activity, enhancing the quality of healthcare, and reducing economic barriers. Reducing social inequalities can significantly contribute to lowering the prevalence of obesity and its long-term health consequences.
References
World Health Organization. (2025, May). Obesity and overweight. Geneva: WHO.
Williams, M. S., et al. (2024). Social and structural determinants of health and social injustices contributing to obesity disparities. Current Obesity Reports, 13(3), 617–625. https://doi.org/10.1007/s13679-024-00578-9
Yilun, W., et al. (2024). Advantages and limitations of the body mass index (BMI) to assess adult obesity. International Journal of Environmental Research and Public Health, 21(6), 757. https://doi.org/10.3390/ijerph21060757
Truthmann, J., et al. (2017). Physical health-related quality of life in relation to metabolic health and obesity among men and women in Germany. Health and Quality of Life Outcomes, 15(1), 122. https://doi.org/10.1186/s12955-017-0688-7
Witkam, R., et al. (2021). Do associations between education and obesity vary depending on the measure of obesity used? A systematic literature review and meta-analysis. SSM – Population Health, 15, 100884. https://doi.org/10.1016/j.ssmph.2021.100884
Olsen, J. A., et al. (2023). The relative importance of education and health behaviour for health and wellbeing. BMC Public Health, 23, 1981. https://doi.org/10.1186/s12889-023-16943-7
Darmon, N., & Drewnowski, A. (2015). Contribution of food prices and diet cost to socioeconomic disparities in diet quality and health: A systematic review and analysis. Nutrition Reviews, 73(10), 643–660. https://doi.org/10.1093/nutrit/nuv027
Pavela, G., et al. (2016). Socioeconomic status, risk of obesity, and the importance of Albert J. Stunkard. Current Obesity Reports, 5(1), 132–139. https://doi.org/10.1007/s13679-015-0185-4
Swinburn, B. A., et al. (2019). The global syndemic of obesity, undernutrition, and climate change. The Lancet, 393(10173), 791–846. https://doi.org/10.1016/S0140-6736(18)32822-8
Organisation for Economic Co-operation and Development (OECD). (2010). Obesity and the economics of prevention. Paris: OECD Publishing.
Marmot, M. (2017). Social justice, epidemiology and health inequalities. European Journal of Epidemiology, 32(7), 537–546. https://doi.org/10.1007/s10654-017-0286-3
Jaacks, L. M., et al. (2019). The obesity transition: Stages of the global epidemic. The Lancet Diabetes & Endocrinology, 7(3), 231–240. https://doi.org/10.1016/S2213-8587(19)30026-9
Macintyre, S., Ellaway, A., & Cummins, S. (2002). Place effects on health: How can we conceptualise, operationalise and measure them? Social Science & Medicine, 55(1), 125–139. https://doi.org/10.1016/S0277-9536(01)00214-3
Braveman, P., & Gottlieb, L. (2014). The social determinants of health: It’s time to consider the causes of the causes. Public Health Reports, 129(Suppl. 2), 19–31. https://doi.org/10.1177/00333549141291S206
Singh, G. K., et al. (2017). Social determinants of health in the United States: Addressing major health inequality trends for the nation, 1935–2016. International Journal of Maternal and Child Health and AIDS, 6(2), 139–164. https://doi.org/10.21106/ijma.236
Chen, D., et al. (2016). Food environments and obesity: Household diet expenditure versus food deserts. American Journal of Public Health, 106(5), 881–888. https://doi.org/10.2105/AJPH.2016.303048
Bevel, M. S., et al. (2023). Association of food deserts and food swamps with obesity-related cancer mortality in the US. JAMA Oncology, 9(7), 909–916. https://doi.org/10.1001/jamaoncol.2023.0634
Oh, J. I., et al. (2024). Food deserts exposure, density of fast-food restaurants, and park access: Exploring the association of food and recreation environments with obesity and diabetes using global and local regression models. PLoS ONE, 19(4), e0301121. https://doi.org/10.1371/journal.pone.0301121
Congdon, P. (2019). Obesity and urban environments. International Journal of Environmental Research and Public Health, 16(3), 464. https://doi.org/10.3390/ijerph16030464
Wong, M. S., et al. (2018). The neighborhood environment and obesity: Understanding variation by race/ethnicity. Preventive Medicine, 111, 371–377. https://doi.org/10.1016/j.ypmed.2017.11.029
Shimels, H. M., et al. (2019). Neighbourhood socioeconomic status and overweight/obesity: A systematic review and meta-analysis of epidemiological studies. BMJ Open, 9(11), e028238. https://doi.org/10.1136/bmjopen-2018-028238
Shimels, H. M., et al. (2017). What does my neighbourhood have to do with my weight? A protocol for systematic review and meta-analysis of the association between neighbourhood socioeconomic status and body weight. BMJ Open, 7(9), e017567. https://doi.org/10.1136/bmjopen-2017-017567
Cohen, S. A., et al. (2017). A closer look at rural–urban health disparities: Associations between obesity and access to care in the United States. The Journal of Rural Health, 33(2), 167–179. https://doi.org/10.1111/jrh.12207
Byrd, A. S., et al. (2018). Racial disparities in obesity treatment. Current Obesity Reports, 7(2), 130–138. https://doi.org/10.1007/s13679-018-0301-3
Oshman, L., et al. (2023). Primary care providers’ perceived barriers to obesity treatment and opportunities for improvement: A mixed methods study. PLoS ONE, 18(4), e0284474. https://doi.org/10.1371/journal.pone.0284474
Gallo, S., & Cheskin, L. J. (2021). Treatment of obesity: Beyond the diet. Gastroenterology Clinics of North America, 50(1), 113–125. https://doi.org/10.1016/j.gtc.2020.10.003
Kirby, J. B., & Kaneda, T. (2005). Neighborhood socioeconomic disadvantage and access to health care. Journal of Health and Social Behavior, 46(1), 15–31. https://doi.org/10.1177/002214650504600103
Washington, T. B., et al. (2023). Disparities in access and quality of obesity care. Gastroenterology Clinics of North America, 52(2), 429–441. https://doi.org/10.1016/j.gtc.2023.02.003
Fruh, S. M. (2017). Obesity: Risk factors, complications, and strategies for sustainable long-term weight management. Journal of the American Association of Nurse Practitioners, 29(S1), S3–S14. https://doi.org/10.1002/2327-6924.12510
Blüher, M. (2019). Obesity: Global epidemiology and pathogenesis. Nature Reviews Endocrinology, 15(5), 288–298. https://doi.org/10.1038/s41574-019-0176-8
Fontaine, K. R., et al. (2003). Years of life lost due to obesity. JAMA, 289(2), 187–193. https://doi.org/10.1001/jama.289.2.187
Sarwer, D. B., & Polonsky, H. M. (2016). The psychosocial burden of obesity. Endocrinology and Metabolism Clinics of North America, 45(3), 677–688. https://doi.org/10.1016/j.ecl.2016.04.016
Puhl, R. M., et al. (2018). Internalizing weight stigma: Prevalence and sociodemographic considerations in U.S. adults with obesity. Obesity (Silver Spring), 26(1), 167–175. https://doi.org/10.1002/oby.22029
Täuber, S., et al. (2018). The impact of workplace health promotion programs emphasizing individual responsibility on weight stigma and discrimination. Frontiers in Psychology, 9, 2206. https://doi.org/10.3389/fpsyg.2018.02206
Organisation for Economic Co-operation and Development (OECD). (2019). The heavy burden of obesity: The economics of prevention. Paris: OECD Publishing.
Bambra, C., Smith, K. E., & Pearce, J. (2019). Scaling up: The politics of health and place. Social Science & Medicine, 232, 36–42. https://doi.org/10.1016/j.socscimed.2019.04.036
Golden, S. D., & Earp, J. A. (2012). Social ecological approaches to individuals and their contexts: Twenty years of health education & behavior health promotion interventions. Health Education & Behavior, 39(3), 364–372. https://doi.org/10.1177/1090198111418634
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Copyright (c) 2025 Karolina Witek, Marta Nowocień, Anna Mandecka, Kornela Kotucha-Cyl, Weronika Komala, Natalia Guzik, Joanna Gerlach, Dorota Plechawska, Joanna Kaźmierczak

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