Consuming more fruit and vegetables can improve your mental wellbeing, according to a new study.
A key feature of this work is that the study was able to follow the same individuals over time. The study also controlled for alternative factors that may affect mental wellbeing, such as age, education, income, marital status, employment status, lifestyle and health, as well as consumption of other foods such as bread or dairy products.
The research showed a positive association between the quantity of fruit and vegetables consumed and people’s self-reported mental wellbeing.
Specifically, the findings indicate that eating just one extra portion of fruits and vegetables a day could have an equivalent effect on mental wellbeing as around eight extra days of walking a month (for at least 10 minutes at a time).
Dr Neel Ocean of the University of Leeds, who authored the study with Dr Peter Howley (University of Leeds) and Dr Jonathan Ensor (University of York), said: “It’s well-established that eating fruit and vegetables can benefit physical health.
Recently, newer studies have suggested that it may also benefit psychological wellbeing. Our research builds on previous work in Australia and New Zealand by verifying this relationship using a much bigger UK sample.
While further work is needed to demonstrate cause and effect, the results are clear: people who do eat more fruit and vegetables report a higher level of mental wellbeing and life satisfaction than those who eat less.”
Dr Howley said: “There appears to be accumulating evidence for the psychological benefits of fruits and vegetables. Despite this, the data show that the vast majority of people in the UK still consume less than their five-a-day.
Encouraging better dietary habits may not just be beneficial to physical health in the long run but may also improve mental well-being in the shorter term.”
‘Lettuce be happy: The longitudinal relationship between the consumption of fruits and vegetables and well-being in the UK’ is published in the journal Social Science and Medicine, and available online at https://doi.org/10.1016/j.socscimed.2018.12.017