More Adherence To A Mediterranean Dietary Pattern is Associated With A Lower Insomnia Score

Abstract Background: Previous studies has shown that low quality diet is correlated with chronic sleep disorders. Mediterranean dietary pattern is considered as a high quality diet which has been shown to have beneficial effects on overall health. Thus, the aim of our study was to investigate the correlation between adherence to Mediterranean dietary pattern and insomnia score in a population of adolescent girls.Methods: Total Data of 734 adolescent girls between 12-18 years old has been considered in this cross-sectional study. To assess dietary intake, a food frequency questionnaire was used. To assess the inherence to Mediterranean dietary style, a modified model of Mediterranean diet was applied and the scores were ranged from 0-9. A valideated version of Insomnia Severity Index questionnaire wss used to assess insomnia. To explore the associations between MED-style diet and insomnia, logistic regression was conducted in crude and adjusted models.Results: The participants with higher adherence to MED-style diet had higher intake of fruits, vegetables, nuts, fish, total energy intake, carbohydrate, dietary fiber, potassium, Beta-carotene, vitamin C, iron and folate. A significant inverse association between adherence to the MED-style diet score and insomnia score was obtained in crude model (β= -0.125; P-value = 0.019) and also after adjustment for confounding variables (β= -0.120; P=0.048).Conclusion: There is an inverse relationship between adherence to the Mediterranean dietary style and the prevalence of insomnia among Iranian adolescent girls. Prospective studies are necessary to confirm these results and clarify whether a causal relationship exists.