Research Article

An investigation of the association of sleep quality and diet quality in adults

Volume: 9 Number: 2 June 26, 2025
EN

An investigation of the association of sleep quality and diet quality in adults

Abstract

This study, which aimed to examine the relationship between sleep quality and diet quality in adults, was conducted on 50 adults residing in Bursa province and known not to use sleeping pills. The researchers via face-to-face interviews completed a questionnaire, querying the personal characteristics, sleep duration and sleep quality of the participants. The daily food consumption data of the participants were recorded using the retrospective recall method. Diet quality and sleep quality were measured using the Healthy Eating Index-2015 (HEI-2015) and Pittsburgh Sleep Quality Index (PSQI), respectively. Most of the participants were female (62%) and aged 25-44 years (68%). The groups with good and poor sleep quality significantly differed for caffeine intake (p < 0.05). No statistically significant correlation was observed between sleep quality and other nutrients including vitamin A, calcium and iron (p > 0.05). While no statistically significant correlation was determined between sleep quality and the HEI overall diet quality score (p > 0.05), the HEI components, the wholegrain score displayed a statistically significant negative correlation with the overall sleep quality score (p < 0.05). In this study, no statistically significant correlation was determined between overall diet quality and sleep quality, but caffeine intake and wholegrain consumption were ascertained to significantly affect sleep quality.

Keywords

Caffeine intake, Adult, Sleep quality, Diet quality, Wholegrain consumption

Ethical Statement

Peer-review Externally peer-reviewed. Declaration of Interests The authors declare that they have no actual, potential, or perceived conflict of interest for this article. Author contribution The contribution of the authors to the present study is equal. All the authors read and approved the final manuscript. All the authors verify that the text, figures, and tables are original and that they have not been published before. Ethics committee approval The Bursa Uludag University Ethics Committee approved the study during meeting number 2020-19/11.

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APA
Gürol, G., Güngör Aslan, T., Gürler, F., & Yıbar, A. (2025). An investigation of the association of sleep quality and diet quality in adults. International Journal of Agriculture Environment and Food Sciences, 9(2), 420-428. https://doi.org/10.31015/2025.2.15
AMA
1.Gürol G, Güngör Aslan T, Gürler F, Yıbar A. An investigation of the association of sleep quality and diet quality in adults. int. j. agric. environ. food sci. 2025;9(2):420-428. doi:10.31015/2025.2.15
Chicago
Gürol, Gülşah, Tuba Güngör Aslan, Fatma Gürler, and Artun Yıbar. 2025. “An Investigation of the Association of Sleep Quality and Diet Quality in Adults”. International Journal of Agriculture Environment and Food Sciences 9 (2): 420-28. https://doi.org/10.31015/2025.2.15.
EndNote
Gürol G, Güngör Aslan T, Gürler F, Yıbar A (June 1, 2025) An investigation of the association of sleep quality and diet quality in adults. International Journal of Agriculture Environment and Food Sciences 9 2 420–428.
IEEE
[1]G. Gürol, T. Güngör Aslan, F. Gürler, and A. Yıbar, “An investigation of the association of sleep quality and diet quality in adults”, int. j. agric. environ. food sci., vol. 9, no. 2, pp. 420–428, June 2025, doi: 10.31015/2025.2.15.
ISNAD
Gürol, Gülşah - Güngör Aslan, Tuba - Gürler, Fatma - Yıbar, Artun. “An Investigation of the Association of Sleep Quality and Diet Quality in Adults”. International Journal of Agriculture Environment and Food Sciences 9/2 (June 1, 2025): 420-428. https://doi.org/10.31015/2025.2.15.
JAMA
1.Gürol G, Güngör Aslan T, Gürler F, Yıbar A. An investigation of the association of sleep quality and diet quality in adults. int. j. agric. environ. food sci. 2025;9:420–428.
MLA
Gürol, Gülşah, et al. “An Investigation of the Association of Sleep Quality and Diet Quality in Adults”. International Journal of Agriculture Environment and Food Sciences, vol. 9, no. 2, June 2025, pp. 420-8, doi:10.31015/2025.2.15.
Vancouver
1.Gülşah Gürol, Tuba Güngör Aslan, Fatma Gürler, Artun Yıbar. An investigation of the association of sleep quality and diet quality in adults. int. j. agric. environ. food sci. 2025 Jun. 1;9(2):420-8. doi:10.31015/2025.2.15