Dietary patterns in relation with psychosomatic complaints profile: Results from SEPAHAN study among a large sample of general adults

Objective: Although dietary patterns have been evaluated in relation to psychological disorders, their associations with psychosomatic complaints are unclear. We investigated relations of dietary patterns with psychosomatic complaints profiles. Methods: In this cross-sectional study, a total of 3363 adults were included. Dietary intakes and psychosomatic complaints were assessed using self-administered Persian validated questionnaires. Dietary patterns and psychosomatic symptom profiles were identified using exploratory factor analysis. Results: Three dietary patterns and four psychosomatic complaints profiles were identified. Individuals in the top tertile of traditional diet had lower odds for gastrointestinal somatic complaints (odds ratio (OR)= 0.68, 95% confidence interval (CI): 0.50, 0.91). Individuals in the top tertile of healthy diet had lower odds for psychological (OR= 0.68, 95% CI: 0.51, 0.90), gastrointestinal (OR= 0.65, 95% CI: 0.49, 0.87), neuro-skeletal (OR= 0.66, 95% CI: 0.45, 0.96), and pharyngeal- respiratory somatic complaints (OR= 0.61, 95% CI: 0.47, 0.79). Individuals in the top tertile of Western diet had greater odds for psychological somatic complaints (OR= 1.50, 95% CI: 1.13, 2.00) than those in the first tertile. Discussion: The healthy dietary pattern is inversely related to the risk of psychosomatic complaints, whereas the Western diet might be associated with increased risk of psychosomatic complaints.