Journal
SOCIAL INDICATORS RESEARCH
Volume 114, Issue 3, Pages 785-801Publisher
SPRINGER
DOI: 10.1007/s11205-012-0173-y
Keywords
Subjective well-being; Healthy food; GHQ; Diet; Mental health; Depression; Happiness; WEMWBS
Categories
Funding
- ESRC [ES/H021248/1] Funding Source: UKRI
- Economic and Social Research Council [ES/H021248/1] Funding Source: researchfish
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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.
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