BACKGROUND: Early adulthood is a period of rapid personal development when individuals experience major life transitions (e.g. leaving the parental home, leaving education, beginning employment, cohabitation and parenthood). Changes in social and physical environments associated with these transitions may influence development of health-related behaviours. Consumption of fast food is one behaviour associated with poor diet and long-term health outcomes. In this study we assess how frequency of fast food consumption changes across early adulthood, and how major life transitions are associated with changes in fast food intake. METHODS: Data were collected across four waves of the Project EAT study, from mean age 14.9 (SD = 1.6) to mean age 31.1 (SD = 1.6) years. Participants reporting data at two or more waves were included (n = 2902). Participants reported past week frequency of eating food from a fast food restaurant and responded to questions on living arrangements, education and employment participation, and having children. To assess changes in fast food we developed a latent growth model incorporating an underlying trajectory of fast food intake, five life transitions, and time-invariant covariates. RESULTS: Mean fast food intake followed an underlying quadratic trajectory, increasing through adolescence to a maximum of 1.88 (SE 0.94) times/week and then decreasing again through early adulthood to 0.76 (SE 2.06) times/week at wave 4. Beginning full-time employment and becoming a parent both contributed to increases in fast food intake, each resulting in an average increase in weekly fast food intake of 0.16 (p < 0.01) times/week. Analysis of changes between pairs of waves revealed stronger associations for these two transitions between waves 1-2 (mean age 14.9-19.4 years) than seen in later waves. Leaving the parental home and beginning cohabitation were associated with decreases in fast food intake of - 0.17 (p = 0.004) and - 0.16 (p = 0.007) times/week respectively, while leaving full-time education was not associated with any change. CONCLUSIONS: The transitions of beginning full-time employment and becoming a parent were associated with increases in fast food intake. Public health policy or interventions designed to reduce fast food intake in young adults may benefit from particular focus on populations experiencing these transitions, to ameliorate their impact.

Department of Kinanthropology Charles University Prague Prague Czech Republic

Department of Psychiatry University of Cambridge Cambridge UK

Division of Epidemiology and Community Health School of Public Health University of Minnesota Minneapolis USA

MRC Epidemiology Unit University of Cambridge Cambridge UK

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Johnson W, Li L, Kuh D, Hardy R. How Has the Age-Related Process of Overweight or Obesity Development Changed over Time? Co-ordinated Analyses of Individual Participant Data from Five United Kingdom Birth Cohorts. Plos Med. 2015;12:e1001828. doi: 10.1371/journal.pmed.1001828. PubMed DOI PMC

Lipsky LM, Nansel TR, Haynie DL, Liu D, Li K, Pratt CA, et al. Diet quality of US adolescents during the transition to adulthood: changes and predictors. Am J Clin Nutr. 2017;105:1424–1432. PubMed PMC

Craigie AM, Lake AA, Kelly SA, Adamson AJ, Mathers JC. Tracking of obesity-related behaviours from childhood to adulthood: A systematic review. Maturitas. 2011;70:266–284. doi: 10.1016/j.maturitas.2011.08.005. PubMed DOI

Miller PE, Cross AJ, Subar AF, Krebs-Smith SM, Park Y, Powell-Wiley T, et al. Comparison of 4 established DASH diet indexes: examining associations of index scores and colorectal cancer. Am J Clin Nutr. 2013;98:794–803. doi: 10.3945/ajcn.113.063602. PubMed DOI PMC

Liese AD, Krebs-Smith SM, Subar AF, George SM, Harmon BE, Neuhouser ML, et al. The dietary patterns methods project: synthesis of findings across cohorts and relevance to dietary guidance. J Nutr. 2015;145:393–402. doi: 10.3945/jn.114.205336. PubMed DOI PMC

Verplanken B, Roy D. Empowering interventions to promote sustainable lifestyles: testing the habit discontinuity hypothesis in a field experiment. J Environ Psychol. 2016;45:127–134. doi: 10.1016/j.jenvp.2015.11.008. DOI

Guthrie JF, Lin BH, Frazao E. Role of food prepared away from home in the American diet, 1977–78 versus 1994–96: Changes and consequences. J Nutr Educ Behav. 2002;34:140–150. doi: 10.1016/S1499-4046(06)60083-3. PubMed DOI

Nielsen S. Trends in Food Locations and Sources among Adolescents and Young Adults. Prev Med. 2002;35:107–113. doi: 10.1006/pmed.2002.1037. PubMed DOI

Fryar CD, Hughes JP, Herrick KA, Ahluwalia N. Fast Food Consumption Among Adults in the United States, 2013–2016. NCHS Data Brief, no 322. Hyattsville; 2018. Available from: https://www.cdc.gov/nchs/products/databriefs/db322.htm. [cited 2020 Sep 28]. PubMed

Food Standards Agency. Food and You - Wave Four. 2018. Available from: https://www.food.gov.uk/research/food-and-you/food-and-you-wave-four. [cited 2020 Aug 26].

Larson N, Neumark-Sztainer D, Laska MN, Story M. Young adults and eating away from home: associations with dietary intake patterns and weight status differ by choice of restaurant. J Am Diet Assoc. 2011;111:1696–1703. doi: 10.1016/j.jada.2011.08.007. PubMed DOI PMC

Pereira MA, Kartashov AI, Ebbeling CB, Van Horn L, Slattery ML, Jacobs PDR, et al. Fast-food habits, weight gain, and insulin resistance (the CARDIA study): 15-year prospective analysis. Lancet. 2005;365:36–42. doi: 10.1016/S0140-6736(04)17663-0. PubMed DOI

Niemeier HM, Raynor HA, Lloyd-Richardson EE, Rogers ML, Wing RR. Fast food consumption and breakfast skipping: predictors of weight gain from adolescence to adulthood in a nationally representative sample. J Adolesc Health. 2006;39:842–849. doi: 10.1016/j.jadohealth.2006.07.001. PubMed DOI

Neumark-Sztainer D, Wall MM, Chen C, Larson NI, Christoph MJ, Sherwood NE. Eating, Activity, and Weight-related Problems From Adolescence to Adulthood. Am J Prev Med. 2018;55:133–141. doi: 10.1016/j.amepre.2018.04.032. PubMed DOI PMC

Larson NI, Neumark-Sztainer DR, Story MT, Wall MM, Harnack LJ, Eisenberg ME. Fast food intake: longitudinal trends during the transition to young adulthood and correlates of intake. J Adolesc Heal. 2008;43:79–86. doi: 10.1016/j.jadohealth.2007.12.005. PubMed DOI

Arnett JJ. Emerging adulthood: a theory of development from the late teens through the twenties. Am Psychol. 2000;55:469–480. doi: 10.1037/0003-066X.55.5.469. PubMed DOI

Dahlgren G, Whitehead M. Policies and strategies to promote social equity in health. Stockholm; 1991. Available from: https://core.ac.uk/download/pdf/6472456.pdf. [cited 2020 Sep 28].

Winpenny EM, van Sluijs EMF, White M, Klepp K-I, Wold B, Lien N. Changes in diet through adolescence and early adulthood: longitudinal trajectories and association with key life transitions. Int J Behav Nutr Phys Act. 2018;15:86. doi: 10.1186/s12966-018-0719-8. PubMed DOI PMC

Skogbrott Birkeland M, Leversen I, Torsheim T, Wold B. Pathways to adulthood and their precursors and outcomes. Scand J Psychol. 2014;55:26–32. doi: 10.1111/sjop.12087. PubMed DOI

Corder K, Winpenny EM, Foubister C, Guagliano JM, Hartwig XM, Love R, et al. Becoming a parent: a systematic review and meta-analysis of changes in BMI, diet, and physical activity. Obes Rev. 2020;21:e12959. doi: 10.1111/obr.12959. PubMed DOI PMC

Winpenny EM, Smith M, Penney T, Foubister C, Guagliano JM, Love R, et al. Changes in physical activity, diet and body weight across the education and employment transitions of early adulthood: A systematic review and meta-analysis. Obes Rev. 2020;21:e12962. doi: 10.1111/obr.12962. PubMed DOI PMC

Neumark-Sztainer D, Story M, Hannan PJ, Croll J. Overweight status and eating patterns among adolescents: where do youths stand in comparison with the healthy people 2010 objectives? Am J Public Health. 2002;92:844–851. doi: 10.2105/AJPH.92.5.844. PubMed DOI PMC

Neumark-Sztainer D, Croll J, Story M, Hannan PJ, French SA, Perry C. Ethnic/racial differences in weight-related concerns and behaviors among adolescent girls and boys: findings from project EAT. J Psychosom Res. 2002;53:963–974. doi: 10.1016/S0022-3999(02)00486-5. PubMed DOI

Larson N, Chen Y, Wall M, Winkler MR, Goldschmidt AB, Neumark-Sztainer D. Personal, behavioral, and environmental predictors of healthy weight maintenance during the transition to adulthood. Prev Med (Baltim) 2018;113:80–90. doi: 10.1016/j.ypmed.2018.04.027. PubMed DOI PMC

U.S. Department of Education National Center for Education Statistics. 2015-16 National Postsecondary Student Aid Study. Dig. Educ. Stat. Table 311.32. Number Percent. Grad. students Enroll. distance Educ. or online classes degree programs, by Sel. Charact. 2018. Available from: https://nces.ed.gov/programs/digest/d18/tables/dt18_311.32.asp. [cited 2020 May 7].

U.S. Internal Revenue Service . Identifying Full-time Employees. 2020.

Haines J, Neumark-Sztainer D, Wall M, Story M. Personal, behavioral, and environmental risk and protective factors for adolescent overweight. Obesity (Silver Spring) 2007;15:2748–2760. doi: 10.1038/oby.2007.327. PubMed DOI

Sherwood NE, Wall M, Neumark-Sztainer D, Story M. Effect of socioeconomic status on weight change patterns in adolescents. Prev Chronic Dis. 2009;6:A19. PubMed PMC

Curran PJ, Muthén BO, Harford TC. The influence of changes in marital status on developmental trajectories of alcohol use in young adults. J Stud Alcohol. 1998;59:647–658. doi: 10.15288/jsa.1998.59.647. PubMed DOI

Larson NI, Neumark-Sztainer D, Hannan PJ, Story M. Family meals during adolescence are associated with higher diet quality and healthful meal patterns during young adulthood. J Am Diet Assoc. 2007;107:1502–1510. doi: 10.1016/j.jada.2007.06.012. PubMed DOI

Gordon-Larsen P, Guilkey DK, Popkin BM. An economic analysis of community-level fast food prices and individual-level fast food intake: a longitudinal study. Health Place. 2011;17:1235–1241. doi: 10.1016/j.healthplace.2011.07.011. PubMed DOI PMC

Deliens T, Deforche B, Annemans L, De Bourdeaudhuij I, Clarys P. Effectiveness of Pricing Strategies on French Fries and Fruit Purchases among University Students: Results from an On-Campus Restaurant Experiment. Plos One. 2016;11:e0165298. doi: 10.1371/journal.pone.0165298. PubMed DOI PMC

Nelson Laska M, Larson NI, Neumark-Sztainer D, Story M. Dietary patterns and home food availability during emerging adulthood: do they differ by living situation? Public Health Nutr. 2010;13:222–228. doi: 10.1017/S1368980009990760. PubMed DOI PMC

Rydell SA, Harnack LJ, Oakes JM, Story M, Jeffery RW, French SA. Why eat at fast-food restaurants: reported reasons among frequent consumers. J Am Diet Assoc. 2008;108:2066–2070. doi: 10.1016/j.jada.2008.09.008. PubMed DOI

Alam A. The Chicken Shop. UCL Centre for Gender and Global Health blog. 2020. Available from: http://www.ighgc.org/blogpost/the-chicken-shop. [cited 2020 Mar 24].

Bove CF, Sobal J, Rauschenbach BS. Food choices among newly married couples: convergence, conflict, individualism, and projects. Appetite. 2003;40:25–41. doi: 10.1016/S0195-6663(02)00147-2. PubMed DOI

Kemmer D, Anderson AS, Marshall DW. Living together and eating together: changes in food choice and eating habits during the transition from single to married/cohabiting. Sociol Rev. 1998;46:49–72. doi: 10.1111/1467-954X.00089. DOI

Boone-Heinonen J, Howard AG, Meyer K, Lewis CE, Kiefe CI, Laroche HH, et al. Marriage and parenthood in relation to obesogenic neighborhood trajectories: The CARDIA study. Heal Place. 2015;34:229–240. doi: 10.1016/j.healthplace.2015.05.005. PubMed DOI PMC

Burke V, Beilin LJ, Dunbar D, Kevan M. Changes in health-related behaviours and cardiovascular risk factors in young adults: associations with living with a partner. Prev Med (Baltim). 2004;39:722–30. PubMed

Elstgeest LEM, Mishra GD, Dobson AJ. Transitions in living arrangements are associated with changes in dietary patterns in young women 123. J Nutr Nutr Epidemiol J Nutr. 2012;142:1561–7. PubMed

Laroche HH, Wallace RB, Snetselaar L, Hillis SL, Steffen LM. Changes in diet behavior when adults become parents. J Acad Nutr Diet. 2012;112:832–839. doi: 10.1016/j.jand.2012.02.024. PubMed DOI PMC

Winpenny EM, Penney TL, Corder K, White M, van Sluijs EMF. Change in diet in the period from adolescence to early adulthood: a systematic scoping review of longitudinal studies. Int J Behav Nutr Phys Act. 2017;14:60. doi: 10.1186/s12966-017-0518-7. PubMed DOI PMC

Larson N, Hannan PJ, Fulkerson JA, Laska MN, Eisenberg ME, Neumark-Sztainer D. Secular trends in fast-food restaurant use among adolescents and maternal caregivers from 1999 to 2010. Am J Public Health. 2014;104:62–69. doi: 10.2105/AJPH.2013.301805. PubMed DOI PMC