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Stability of the timing of food intake at daily and monthly timescales in young adults

McHill, A.W. and Hilditch, C.J. and Fischer, D. and Czeisler, Ch.A. and Garaulet, M. and Scheer, F.A.J.L. and Klerman, E.B. (2020) Stability of the timing of food intake at daily and monthly timescales in young adults. Scientific Reports, 10 (1), p. 20849. Nature Publishing Group. doi: 10.1038/s41598-020-77851-z. ISSN 2045-2322.

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Official URL: https://doi.org/10.1038/s41598-020-77851-z

Abstract

Cross-sectional observations have shown that the timing of eating may be important for health-related outcomes. Here we examined the stability of eating timing, using both clock hour and relative circadian time, across one semester (n = 14) at daily and monthly time-scales. At three time points ~ 1 month apart, circadian phase was determined during an overnight in-laboratory visit and eating was photographically recorded for one week to assess timing and composition. Day-to-day stability was measured using the Composite Phase Deviation (deviation from a perfectly regular pattern) and intraclass correlation coefficients (ICC) were used to determine individual stability across months (weekly average compared across months). Day-to-day clock timing of caloric events had poor stability within individuals (~ 3-h variation; ICC = 0.12–0.34). The timing of eating was stable across months (~ 1-h variation, ICCs ranging from 0.54–0.63), but less stable across months when measured relative to circadian timing (ICC = 0.33–0.41). Our findings suggest that though day-to-day variability in the timing of eating has poor stability, the timing of eating measured for a week is stable across months within individuals. This indicates two relevant timescales: a monthly timescale with more stability in eating timing than a daily timescale. Thus, a single day’s food documentation may not represent habitual (longer timescale) patterns.

Item URL in elib:https://elib.dlr.de/140630/
Document Type:Article
Title:Stability of the timing of food intake at daily and monthly timescales in young adults
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
McHill, A.W.UNSPECIFIEDUNSPECIFIED
Hilditch, C.J.UNSPECIFIEDUNSPECIFIED
Fischer, D.dorothee.fischer (at) dlr.deUNSPECIFIED
Czeisler, Ch.A.UNSPECIFIEDUNSPECIFIED
Garaulet, M.UNSPECIFIEDUNSPECIFIED
Scheer, F.A.J.L.UNSPECIFIEDUNSPECIFIED
Klerman, E.B.UNSPECIFIEDUNSPECIFIED
Date:30 November 2020
Journal or Publication Title:Scientific Reports
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:10
DOI :10.1038/s41598-020-77851-z
Page Range:p. 20849
Publisher:Nature Publishing Group
ISSN:2045-2322
Status:Published
Keywords:meal timing; nutrition; dietary behavior; intra-individual variability; sleep; circadian rhythms
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Human factors and safety in Aeronautics (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Sleep and Human Factors Research
Deposited By: Sender, Alina
Deposited On:28 Jan 2021 11:01
Last Modified:28 Jan 2021 11:18

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