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Background: Few studies have assessed adherence to the Mediterranean diet in relation to psychological health, in particular in the Middle East.

Objective: To examine the association between adherence to Mediterranean dietary pattern and prevalence of psychological disorders among a large population of Iranian adults.

Design: In this cross-sectional study on 3172 Iranian adults aged 18–55 years, we used a validated food frequency questionnaire for the assessment of dietary intakes. Adherence to the Mediterranean dietary pattern was examined using the Trichopoulou et al. method. To assess psychological health, the Iranian validated version of the Hospital Anxiety and Depression Scale (HADS) was used. Psychological distress was assessed through the use of General Health Questionnaire (GHQ).

Results: Mean age of study participants was 36.54 ± 4.97 years. After controlling for potential confounders …