Is Psychological Well-Being Linked to the Consumption of Fruit and Vegetables?
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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.
KeywordsSubjective well-being Healthy food GHQ Diet Mental health Depression Happiness WEMWBS
- Layard, R. (2005). Happiness: Lessons from a new science. London: Allen Lane.Google Scholar
- 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.