Social Indicators Research

, Volume 114, Issue 3, pp 785–801 | Cite as

Is Psychological Well-Being Linked to the Consumption of Fruit and Vegetables?

  • David G. Blanchflower
  • Andrew J. OswaldEmail author
  • Sarah Stewart-Brown


Little is known about the influence of people’s diet on their psychological well-being. This study provides evidence of a link between the consumption of fruit and vegetables and high well-being. In cross-sectional data, happiness and mental health rise in an approximately dose–response way with the number of daily portions of fruit and vegetables. Well-being peaks at approximately 7 portions per day. We document this relationship in three data sets, covering approximately 80,000 randomly selected British individuals, and for seven measures of well-being (life satisfaction, WEMWBS mental well-being, GHQ mental disorders, self-reported health, happiness, nervousness, and feeling low). The pattern is robust to adjustment for a large number of other demographic, social and economic variables. Reverse causality and problems of confounding remain possible. We discuss the strengths and weaknesses of our analysis, how government policy-makers might wish to react to it, and what kinds of further research—especially randomized trials—would be valuable.


Subjective well-being Healthy food GHQ Diet Mental health Depression Happiness WEMWBS 


  1. Blanchflower, D. G., & Oswald, A. J. (2004). Well-being over time in Britain and the USA. Journal of Public Economics, 88, 1359–1386.CrossRefGoogle Scholar
  2. Blanchflower, D. G., & Oswald, A. J. (2008). Is well-being U-shaped over the life cycle? Social Science and Medicine, 66, 1733–1749.CrossRefGoogle Scholar
  3. Blanchflower, D. G., & Oswald, A. J. (2011). International happiness: A new view on the measure of performance. Academy of Management Perspectives, 25, 6–22.CrossRefGoogle Scholar
  4. Capacci, S., & Mazzocchi, M. (2011). Five a day, a price to pay: An evaluation of the UK program impact accounting for market forces. Journal of Health Economics, 30, 87–98.CrossRefGoogle Scholar
  5. Carter, K. N., Krus, K., Blakely, T., & Collings, S. (2011). The association of food security with psychological distress in New Zealand and any gender differences. Social Science and Medicine, 72, 1463–1471.CrossRefGoogle Scholar
  6. Clark, A. E., Frijters, P., & Shields, M. A. (2008). Relative income, happiness, and utility: An explanation for the Easterlin Paradox and other puzzles. Journal of Economic Literature, 46, 95–144.CrossRefGoogle Scholar
  7. Dave, D. M., & Kelly, I. R. (2012). How does the business cycle affect eating habits? Social Science and Medicine, 74, 254–262.CrossRefGoogle Scholar
  8. Diener, E. (1994). Assessing subjective well-being: progress and opportunities. Social Indicators Research, 31, 103–157.CrossRefGoogle Scholar
  9. Diener, E., Suh, E. M., Lucas, R. E., & Smith, H. L. (1999). Subjective well-being: Three decades of progress. Psychological Bulletin, 125(2), 276–302.CrossRefGoogle Scholar
  10. Dolan, P., Peasgood, T., & White, M. (2008). Do we really know what makes us happy? A review of the economic literature on the factors associated with subjective well-being. Journal of Economic Psychology, 29, 94–122.CrossRefGoogle Scholar
  11. Easterlin, R. A. (2003). Explaining happiness. Proceedings of the National Academy of Sciences of the USA, 100, 11176–11183.CrossRefGoogle Scholar
  12. Farnworth, C. R. (2009). Well-being is a process of becoming: Respondent-led research with organic farmers in Madagascar. Social Indicators Research, 90, 89–106.CrossRefGoogle Scholar
  13. Goldberg, D. P., Gater, T., Sartorious, N., Ustun, T. B., Piccinelli, M., Gureje, O., et al. (1997). The validity of two versions of the GHQ in the WHO study of mental illness in general health care. Psychological Medicine, 27, 191–197.CrossRefGoogle Scholar
  14. Graham, C. (2005). Insights on development from the economics of happiness. World Bank Research Observer, 20, 201–231.CrossRefGoogle Scholar
  15. Graham, C. (2008). Happiness and health: Lessons—and questions—for public policy. Health Affairs, 27, 72–87.CrossRefGoogle Scholar
  16. Hu, Y. J., Stewart-Brown, S., Twigg, L., & Weich, S. (2007). Can the 12-item General Health Questionnaire be used to measure positive mental health? Psychological Medicine, 37, 1005–1013.CrossRefGoogle Scholar
  17. Jacka, F. N., Pasco, J. A., Myletun, A., et al. (2010). Association of western and traditional diets with depression and anxiety in women. American Journal of Psychiatry, 167, 305–311.CrossRefGoogle Scholar
  18. Layard, R. (2005). Happiness: Lessons from a new science. London: Allen Lane.Google Scholar
  19. Ness, A. R., & Powles, J. W. (1997). Fruit and vegetables, and cardiovascular disease: A review. International Journal of Epidemiology, 26, 1–13.CrossRefGoogle Scholar
  20. Piqueras, J. A., Kuhne, W., Vera-Villarroel, P., van Straten, A., & Cuijpers, P. (2011). Happiness and health behaviours in Chilean college students: A cross-sectional survey. BMC Public Health, 11, Article number: 443. doi: 10.1186/1471-2458-11-443.
  21. Powdthavee, N. (2009). What happens to people before and after disability? Focusing effects, lead effects, and adaptation in different areas of life. Social Science and Medicine, 69, 1834–1844.CrossRefGoogle Scholar
  22. Propper, C., Jones, K., Bolster, A., Burgess, S., Johnston, R., & Sarker, R. (2005). Local neighbourhood and mental health: Evidence from the UK. Social Science and Medicine, 61, 2065–2083.CrossRefGoogle Scholar
  23. Shelton, N. J. (2009). Regional risk factors for health inequalities in Scotland and England and the “Scottish effect”. Social Science and Medicine, 69, 761–767.CrossRefGoogle Scholar
  24. Shields, M. A., & Wheatley Price, S. (2005). Exploring the economic and social determinants of psychological well-being and perceived social support in England. Journal of the Royal Statistical Society (Series A), 168, 513–537.CrossRefGoogle Scholar
  25. Tennant, R., Hiller, L., Fishwick, R., Platt, S., Joseph, S., Weich, S., et al. (2007). The Warwick-Edinburgh mental well-being scale (WEMWBS): Development and UK validation. Health and Quality of Life Outcomes, 5, 1477–7527.CrossRefGoogle Scholar
  26. Tsai, A. C., Chang, T. L., & Chi, S. H. (2012). Frequent consumption of vegetables predicts lower risk of depression in older Taiwanese—results of a prospective population-based study. Public Health Nutrition, 15, 1087–1092.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • David G. Blanchflower
    • 1
  • Andrew J. Oswald
    • 2
    • 3
    Email author
  • Sarah Stewart-Brown
    • 4
  1. 1.Department of EconomicsDartmouth CollegeHanoverUSA
  2. 2.IZA InstituteBonnGermany
  3. 3.Department of Economics and CAGE CentreUniversity of WarwickCoventryUK
  4. 4.Warwick Medical SchoolUniversity of WarwickCoventryUK

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