, Volume 54, Issue 1, pp 311–336 | Cite as

The Effects of College on Weight: Examining the “Freshman 15” Myth and Other Effects of College Over the Life Cycle

  • Charles L. BaumIIEmail author


This study examines the effects of college on weight over much of the life cycle. I compare weights for college students with their weights before and after college and with the weights of noncollege peers using data from the National Longitudinal Survey of Youth (NLSY). I also examine the longer-term effects of college measured almost three decades later. I find that college freshmen gain substantially less than the 15 pounds rumored to be typical for freshmen. Using difference models, individual-specific fixed-effects models, and instrumental variables models to control for various sources of potential bias, I find that freshman year college attendance is estimated to cause only about a one-pound increase. Supplemental results show that those from lower socioeconomic backgrounds gain more weight during the freshman college year. Longer term, having a college education consistently decreases weight. These negative effects have faded over the last 20 years, and they diminish as respondents approach middle age. These trends are more prevalent for whites and Hispanics than for blacks.


Weight Weight gain College Freshman 15 



I would like to thank the Faculty Research and Creative Activity Committee (FRCAC) and Michael D. Allen at Middle Tennessee State University for financial support.


  1. Alley, D. E., & Chang, V. W. (2007). The changing relationship of obesity and disability, 1988–2004. Journal of the American Medical Association, 298, 2020–2027.CrossRefGoogle Scholar
  2. Allison, D. B., Fontaine, K. R., Manson, J. E., Stevens, J., & VanItallie, T. B. (1999). Annual deaths attributable to obesity in the United States. Journal of the American Medical Association, 282, 1530–1538.CrossRefGoogle Scholar
  3. American College Health Association. (2005). The American College Health Association National College Health Assessment (ACHA-NCHA): Spring 2003 reference group report. Journal of American College Health, 53, 199–210.Google Scholar
  4. Anderson, J. W., Konz, E. C., Frederick, R. C., & Wood, C. L. (2001). Long-term weight-loss maintenance: A meta-analysis of U.S. studies. American Journal of Clinical Nutrition, 74, 579–584.Google Scholar
  5. Andreyeva, T., Sturm, R., & Ringel, J. S. (2004). Moderate and severe obesity have large differences in health care costs. Obesity Research, 12, 1936–1943.CrossRefGoogle Scholar
  6. Arendt, J. N. (2005). Does education cause better health? A panel data analysis using school reforms for identification. Economics of Education Review, 24, 149–160.CrossRefGoogle Scholar
  7. Argys, L. M., & Rees, D. I. (2008). Searching for peer effects: A test of the contagion hypothesis. Review of Economics and Statistics, 90, 442–458.Google Scholar
  8. Baum, C. L., & Ruhm, C. J. (2009). Age, socioeconomic status, and obesity growth. Journal of Health Economics, 28, 635–648.CrossRefGoogle Scholar
  9. Brunello, G., Fabbri, D., & Fort, M. (2013). The causal effect of education on body mass: Evidence from Europe. Journal of Labor Economics, 31, 195–223.CrossRefGoogle Scholar
  10. Card, D. E. (1995). Using geographic variation in college proximity to estimate the returns to schooling. In L. N. Christofides & R. Swidinsky (Eds.), Aspects of labour market behavior: Essays in honor of John Vanderkamp (pp. 201–221). Toronto, Canada: University of Toronto Press.Google Scholar
  11. Cawley, J. (2000). Body weight and women’s labor market outcomes (NBER Working Paper No. 7841). Cambridge, MA: National Bureau of Economic Research.Google Scholar
  12. Cawley, J. (2004). The impact of obesity on wages. Journal of Human Resources, 39, 451–474.CrossRefGoogle Scholar
  13. Centers for Disease Control and Prevention (CDC). (2006a). Body mass index (BMI). Retrieved from
  14. Centers for Disease Control and Prevention (CDC). (2006b). Overweight and obesity: Defining overweight and obesity. Retrieved from
  15. Chang, V. W. (2006). Racial residential segregation and weight status among US adults. Social Science & Medicine, 63, 1289–1303.CrossRefGoogle Scholar
  16. Chang, V. W., & Christakis, N. A. (2005). Income inequality and weight status in US metropolitan areas. Social Science & Medicine, 61, 83–96.CrossRefGoogle Scholar
  17. Chang, V. W., Hillier, A. E., & Mehta, N. K. (2009). Neighborhood racial isolation, disorder, and obesity. Social Forces, 87, 2063–2092.Google Scholar
  18. Chang, V. W., & Lauderdale, D. S. (2005). Income disparities in body mass index and obesity in the United States, 1971–2002. Archives of Internal Medicine, 165, 2122–2128.Google Scholar
  19. Chung, C., & Myers, S. L. (1999). Do the poor pay more for food? An analysis of grocery store availability and food price disparities. Journal of Consumer Affairs, 33, 276–296.CrossRefGoogle Scholar
  20. Colditz, G. A., Giovannucci, E., Rimm, E. B., Stampfer, M. J., Rosner, B., Speizer, F. E., . . . Willett, W. C. (1991). Alcohol intake in relation to diet and obesity in women and men. American Journal of Clinical Nutrition, 54, 49–55.Google Scholar
  21. Conley, D., & Glauber, R. (2007). Gender, body mass, and socioeconomic status: New evidence from the PSID. Advances in Health Economics and Health Services Research, 17, 253–275.CrossRefGoogle Scholar
  22. Crombie, A. P., Ilich, J. Z., Dutton, G. R., Panton, L. B., & Abood, D. A. (2009). The freshman weight gain phenomenon revisited. Nutrition Reviews, 67, 83–94.CrossRefGoogle Scholar
  23. Currie, J., & Moretti, E. (2003). Mother’s education and the intergenerational transmission of human capital: Evidence from college openings. Quarterly Journal of Economics, 118, 1495–1532.CrossRefGoogle Scholar
  24. Cutler, D., & Lleras-Muney, A. (2008). Education and health: Evaluating theories and evidence. In R. F. Schoeni, J. S. House, J. A. Kaplan, & H. Pollack (Eds.), Making Americans healthier: Social and economic policy as health policy (pp. 29–60). New York, NY: Russell Sage Foundation.Google Scholar
  25. Cutler, D., & Lleras-Muney, A. (2010). Understanding differences in health behaviors by education. Journal of Health Economics, 29, 1–28.CrossRefGoogle Scholar
  26. Debate, R. D., Topping, M., & Sargent, R. G. (2001). Racial and gender differences in weight status and dietary practices among college students. Adolescence, 36, 819–833.Google Scholar
  27. Douglas, K. A., Collins, J. L., Warren, C., Kann, L., Gold, R., Clayton, S., . . . Kolbe, L. J. (1997). Results from the 1995 National College Health Risk Behavior Survey. Journal of American College Health, 46, 55–66.Google Scholar
  28. Drewnowski, A., & Specter, S. E. (2004). Poverty and obesity: The role of energy density and costs. American Journal of Clinical Nutrition, 79, 6–16.Google Scholar
  29. Finkelstein, E. A., Fiebelkorn, I. C., & Wang, G. (2003). National medical spending attributable to overweight and obesity: How much, and who’s paying. Health Affairs. Advance online publication. doi: 10.1377/hlthaff.w3.219 Google Scholar
  30. Flegal, K. M., Carroll, M. D., Kit, B. K., & Ogden, C. L. (2012). Prevalence of obesity and trends in the distribution of body mass index among US adults, 1999–2010. Journal of the American Medical Association, 307, 491–497.Google Scholar
  31. Flegal, K. M., Graubard, B. I., Williamson, D. F., & Gail, M. H. (2005). Excess deaths associated with underweight, overweight, and obesity. Journal of the American Medical Association, 293, 1861–1867.Google Scholar
  32. Fontaine, K. R., Redden, D. T., Wang, C., Westfall, A. O., & Allison, D. B. (2003). Years of life lost due to obesity. Journal of the American Medical Association, 289, 187–193.Google Scholar
  33. Franz, M. J., VanWormer, J. J., Crain, A. L., Boucher, J. L., Histon, T., Caplan, W., . . . Pronk, N. P. (2007). Weight-loss outcomes: A systematic review and meta-analysis of weight loss clinical trials with a minimum 1-year follow-up. Journal of the American Dietetic Association, 107, 1755–1767.Google Scholar
  34. Freedman, V. A., & Martin, L. G. (2000). Contribution of chronic conditions to aggregate changes in old-age functioning. American Journal of Public Health, 90, 1755–1760.CrossRefGoogle Scholar
  35. Freedman, V. A., Schoeni, R. F., Martin, L. G., & Cornman, J. (2007). Chronic conditions and the decline in late-life disability. Demography, 44, 459–477.CrossRefGoogle Scholar
  36. Geronimus, A. T., Hicken, M., Keene, D., & Bound, J. (2006). ‘Weathering’ and age patterns of allostatic load scores among blacks and whites in the United States. American Journal of Public Health, 96, 826–833.CrossRefGoogle Scholar
  37. Grossman, M. (1972a). On the concept of health capital and the demand for health. Journal of Political Economy, 80, 223–255.CrossRefGoogle Scholar
  38. Grossman, M. (1972b). The demand for health: A theoretical and empirical investigation. New York, NY: Columbia University Press.Google Scholar
  39. Grossman, M. (1975). The correlation between health and schooling. In N. E. Terleckyj (Ed.), Household production and consumption (pp. 147–211). New York, NY: Columbia University Press.Google Scholar
  40. Grossman, M. (2006). Education and nonmarket outcomes. Handbook of the Economics of Education, 1, 577–633.CrossRefGoogle Scholar
  41. Grossman, M., & Kaestner, R. (1997). Effects of education on health. In J. R. Behrman & N. Stacey (Eds.), The social benefits of education (pp. 69–123). Ann Arbor: University of Michigan Press.Google Scholar
  42. Haberman, S., & Luffey, D. (1998). Weighing in college students’ diet and exercise behaviors. Journal of American College Health, 46, 189–191.CrossRefGoogle Scholar
  43. Haomiao, J., & Lubertkin, E. I. (2005). The impact of obesity on health-related quality-of-life in the general adult US population. Journal of Public Health, 27, 156–164.CrossRefGoogle Scholar
  44. Huang, Y., Song, W. O., Schemmel, R. A., & Hoerr, S. M. (1994). What do college students eat? Food selection and meal patterns. Nutrition Research, 14, 1143–1153.CrossRefGoogle Scholar
  45. Johnston, D. W., & Lee, W.-S. (2011). Explaining the female black-white obesity gap: A decomposition analysis of proximal causes. Demography, 48, 1429–1450.CrossRefGoogle Scholar
  46. Jurges, H., Reinhold, S., & Salm, M. (2011). Does schooling affect health behavior? Evidence from the educational expansion in Western Germany. Economics of Education Review, 30, 862–872.CrossRefGoogle Scholar
  47. Kemptner, D., Jurges, H., & Reinhold, S. (2011). Changes in compulsory schooling and the causal effect of education on health: Evidence from Germany. Journal of Health Economics, 30, 340–354.CrossRefGoogle Scholar
  48. Kenkel, D., Lillard, D., & Mathios, A. (2006). The roles of high school completion and GED receipt in smoking and obesity. Journal of Labor Economics, 24, 635–660.CrossRefGoogle Scholar
  49. Kling, J. R. (2001). Interpreting instrumental variables estimates of the returns to schooling. Journal of Business and Economic Statistics, 19, 358–364.CrossRefGoogle Scholar
  50. Lleras-Muney, A. (2005). The relationship between education and adult mortality in the United States. Review of Economic Studies, 72, 189–221.CrossRefGoogle Scholar
  51. Lowry, R., Galuska, D. A., Fulton, J. E., Wechsler, H., Kann, L., & Collins, J. L. (2000). Physical activity, food choice, and weight management goals and practices among U.S. college students. American Journal of Preventive Medicine, 18(1), 18–27.CrossRefGoogle Scholar
  52. Lundborg, P. (2013). The health returns to schooling—What can we learn from twins? Journal of Population Economics, 26, 673–701.CrossRefGoogle Scholar
  53. Marmot, M., Smith, G. D., Stansfeld, S., Patel, C., North, F., Head, J., . . . Feeny, A. (1991). Health inequalities among British civil servants: The Whitehall II Study. Lancet, 337, 1387–1393.Google Scholar
  54. Martin, L. G., Schoeni, R. F., & Andreski, P. M. (2010). Trends in health of older adults in the United States: Past, present, future. Demography, 47, S17–S40.CrossRefGoogle Scholar
  55. McLaren, L. (2007). Socioeconomic status and obesity. Epidemiologic Reviews, 29, 29–48.CrossRefGoogle Scholar
  56. McTigue, K., Larson, J. C., Valoski, A., Burke, G., Kotchen, J., Lewis, C. E., . . . Kuller, L. (2006). Mortality outcomes and cardiac and vascular outcomes in extremely obese women. Journal of the American Medical Association, 296, 79–86.Google Scholar
  57. Mehta, N. K., & Chang, V. W. (2009). Mortality attributable to obesity among middle-aged adults in the United States. Demography, 46, 851–872.CrossRefGoogle Scholar
  58. Mokdad, A. H., Bowman, B. A., Ford, E. S., Vinicor, F., Marks, J. S., & Koplan, J. P. (2001). The continuing epidemic of obesity and diabetes in the United States. Journal of the American Medical Association, 286, 1195–1200.Google Scholar
  59. Mokdad, A. H., Serdula, M. K., Dietz, W. H., Bowman, B. A., Marks, J. S., & Koplan, J. P. (1999). The spread of the obesity epidemic in the United States, 1991–1999. Journal of the American Medical Association, 282, 1519–1522.Google Scholar
  60. Moretti, E. (2004). Estimating the social return to higher education: Evidence from longitudinal and repeated cross-sectional data. Journal of Econometrics, 121, 175–212.CrossRefGoogle Scholar
  61. Must, A., Spadano, J., Coakley, E. H., Field, A. E., Colditz, G., & Dietz, W. D. (1999). The disease burden associated with overweight and obesity. Journal of the American Medical Association, 282, 1523–1529.Google Scholar
  62. Nader, P. R., O’Brien, M., Houts, R., Bradley, R., Belsky, J., Crosnoe, R., . . . National Institute of Child Health and Human Development Early Child Care Research Network. (2006). Identifying risk for obesity in early childhood. Pediatrics, 118, e594–e601.Google Scholar
  63. Ogden, C. L., Carroll, M. D., Curtin, L. R., Lamb, M. M., & Flegal, K. M. (2010). Prevalence of high body mass index in US children and adolescents, 2007–2008. Journal of the American Medical Association, 303, 242–249.Google Scholar
  64. Poortinga, W. (2006). Perceptions of the environment, physical activity, and obesity. Social Science & Medicine, 63, 2835–2846.CrossRefGoogle Scholar
  65. Prentice, A. M. (1995). Alcohol and obesity. International Journal of Obesity and Related Metabolic Disorders, 19, S544–S550.Google Scholar
  66. Quesenberry, C. P., Caan, B., & Jacobson, A. (1998). Obesity, health services use, and health care costs among members of a health maintenance organization. Archives of Internal Medicine, 158, 466–472.CrossRefGoogle Scholar
  67. Sander, W. (1995a). Schooling and quitting smoking. Review of Economics and Statistics, 77, 191–199.Google Scholar
  68. Sander, W. (1995b). Schooling and smoking. Economics of Education Review, 14, 23–33.CrossRefGoogle Scholar
  69. Scharoun-Lee, M., Gordon-Larsen, P., Adair, L. S., Popkin, B. M., Kaufman, J. S., & Suchindran, C. M. (2011). Intergenerational profiles of socioeconomic (dis)advantage and obesity during transition to adulthood. Demography, 48, 625–651.CrossRefGoogle Scholar
  70. Shapiro, J. M. (2006). Smart cities: Qualify of life, productivity, and the growth effects of human capital. Review of Economics and Statistics, 88, 324–335.Google Scholar
  71. Smith, J. P. (2004). Unraveling the SES-health connection. In L. J. Waite (Ed.), Aging, health, and the public policy: Demographic and economic perspectives (Vol. 30, pp. 108–132). New York, NY: Population Council.Google Scholar
  72. Sobal, J., & Stunkard, A. J. (1989). Socioeconomic status and obesity: A review of the literature. Psychological Bulletin, 105, 260–275.CrossRefGoogle Scholar
  73. Staiger, D., & Stock, J. (1997). Instrumental variables regression with weak instruments. Econometrica, 65, 557–586.CrossRefGoogle Scholar
  74. Stewart, S. T., Cutler, D. M., & Rosen, A. B. (2013). US trends in quality-adjusted life expectancy from 1987 to 2008: Combining national surveys to more broadly track the health of the nation. Journal of Public Health, 103(11), e78–e87. doi: 10.2105/AJPH.2013.301250 Google Scholar
  75. Webbink, D., Martin, N. G., & Visscher, P. M. (2010). Does education reduce the probability of being overweight? Journal of Health Economics, 29, 29–38.CrossRefGoogle Scholar
  76. Westerterp-Plantenga, M. S., & Verwegen, C. R. T. (1999). The appetizing effect of an aperitif in overweight and normal-weight humans. American Journal of Clinical Nutrition, 69, 205–212.Google Scholar
  77. Yakusheva, O., Kapinos, K., & Weiss, M. (2011). Peer effects and the freshman 15: Evidence from a natural experiment. Economics and Human Biology, 9, 119–132.CrossRefGoogle Scholar

Copyright information

© Population Association of America 2016

Authors and Affiliations

  1. 1.Economics and Finance DepartmentMiddle Tennessee State UniversityMurfreesboroUSA

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