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. 2022 Dec 9;14(24):5248.
doi: 10.3390/nu14245248.

Variability in Sleep Timing and Dietary Intake: A Scoping Review of the Literature

Adriana Rusu  1   2 , Dana Mihaela Ciobanu  1   2 , Georgeta Inceu  1   2 , Anca-Elena Craciun  1   2 , Adriana Fodor  1   2 , Gabriela Roman  1   2 , Cornelia Gabriela Bala  1   2
Affiliations

Variability in Sleep Timing and Dietary Intake: A Scoping Review of the Literature

Adriana Rusu et al. Nutrients. .

Abstract

The objective of this scoping review was to summarize previous studies which examined the effect of day-to-day variability in sleep timing and social jetlag (SJL) on dietary intake. A systematic literature search was conducted in PubMed, Embase, and Clarivate Analytics Web of Science and we identified 22 records. No difference in caloric and macronutrient intake between SJL groups was observed in studies that enrolled healthy young adults. However, studies that enrolled participants with obesity and obesity-related chronic conditions reported a higher caloric intake and a higher intake of carbohydrates, total fat, saturated fats, and cholesterol in participants with SJL than in those without. Most studies reported a lower quality of diet, a delayed mealtime, and eating jetlag in participants with SJL vs. those without SJL. No correlation of day-to-day variability in sleep timing with average caloric intake was observed, but bed-time variability was negatively associated with diet quality. Methodological issues have been identified in sources assessed including study design, power calculation, population enrolled, and tools/metrics used for sleep timing variability assessment. Future well powered longitudinal studies, with clear protocols, standardized metrics, including all age groups from general population are needed to clarify the dietary intake consequences of variability in sleep timing.

Keywords: dietary intake; sleep variability; social jetlag.

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Conflict of interest statement

A.R. declares support from Sanofi. D.C. reports honoraria for lectures and other support from Sanofi, AstraZeneca, Eli Lilly, Medtronic, and Novo Nordisk. G.I. reports honoraria for lectures, advisory board, and other support from Novo Nordisk, Boehringer Ingelheim, Astra Zeneca, Eli Lilly, Servier, Viatris, Zentiva, Worwag Pharma and Sanofi. A.C. reports honoraria for lectures, advisory board, and other support from Novo Nordisk, Servier, Boehringer Ingelheim, Medtronic, Eli Lilly, Viatris and Sanofi. A.F. reports honoraria for lectures, advisory board, and other support and fees from AstraZeneca, Novo Nordisk, Boehringer Ingelheim, Eli Lilly, and Sanofi. G.R. reports honoraria for lectures, advisory board, expert testimony, and other support from Eli Lilly, Novo Nordisk, AstraZeneca, Boehringer Ingelheim, Medtronic, and Sanofi. C.B. reports honoraria for lectures, advisory board, and other support and fees from AstraZeneca, Novo Nordisk, Bayer, Boehringer Ingelheim, Eli Lilly, Medtronic, and Sanofi. The funder had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.

Figures

Figure 1
Figure 1
Records selection process.
Figure 2
Figure 2
Quality assessment [17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38].
See this image and copyright information in PMC

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