Abstract
BackgroundA healthy diet is a key determinant of an individual’s health status and is closely related to mental health and quality of life (QoL); however, the exact nature of the relationship is unknown. This study hypothesized that a higher diet quality score is associated with a lower observance of symptoms of depression and anxiety and a higher QoL.MethodsThis study evaluated 1,295 adults (521 men; 774 women) aged 19–64 years, who participated in the 2014–2015 National Fitness Award Project. Diet quality was measured by the recommended food score (RFS), and mental health and QoL were assessed by the beck depression inventory (BDI), beck anxiety inventory (BAI), and the World Health Organization QoL–Brief (WHOQoL–BREF).ResultsAfter adjusting for covariates, the individuals with depression had a significantly lower RFS value compared to those without depression, and the group with a QoL score above the median had a higher RFS value than the group with a QoL score below the median. These trends occurred in both men and women. Subjects in the highest tertile of RFS showed a lower odds of depression (OR = 0.51, 95% CI = 0.32–0.81, p-trend = 0.0043) and a QoL score below the median (OR = 0.40, 95% CI = 0.30–0.54, p-trend < 0.0001) compared with those in the lowest tertile. The RFS was not associated with anxiety.ConclusionsOur data suggest that higher diet quality may be associated with lower depressive symptoms and a better QoL in Korean adults.
Highlights
A healthy diet is a key determinant of an individual’s health status and is closely related to mental health and quality of life (QoL); the exact nature of the relationship is unknown
Ethical approval of this retrospective study was given by the Institutional Review Board (IRB) of the Korea Institute of Sport Science (KISS-201504_EFS-002-01), and Ewha Womans University (120–2, August 2018), and all subjects provided their written informed consent to participate in the study
The recommended food score (RFS) was negatively correlated with the beck depression inventory (BDI) scores and positively correlated with the World Health Organization quality of life (WHOQoL)-BREF scores
Summary
A healthy diet is a key determinant of an individual’s health status and is closely related to mental health and quality of life (QoL); the exact nature of the relationship is unknown. As a result of this gain in life expectancy, there has been increased attention toward physical, mental, and health status, accompanied by a marked interest in the quality of life (QoL). Health Organization (WHO) defines QoL as “an individual’s perception of their position in life in the context of the culture and the value system where they live, and in relation to their goals, expectations, standards and concerns” [1]. QoL encompasses physical, mental, social, and disease domains [2], and these domains are related to an increased risk of mortality [3].
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