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Subjective hunger, gastric upset, and sleepiness in response to altered meal timing during simulated shiftwork

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dc.contributor.authorGupta, C.C.
dc.contributor.authorCentofanti, S.
dc.contributor.authorDorrian, J.
dc.contributor.authorCoates, A.M.
dc.contributor.authorStepien, J.M.
dc.contributor.authorKennaway, D.
dc.contributor.authorWittert, G.
dc.contributor.authorHeilbronn, L.
dc.contributor.authorCatcheside, P.
dc.contributor.authorNoakes, M.
dc.contributor.authorCoro, D.
dc.contributor.authorChandrakumar, D.
dc.contributor.authorBanks, S.
dc.date.issued2019
dc.description.abstractShiftworkers report eating during the night when the body is primed to sleep. This study investigated the impact of altering food timing on subjective responses. Healthy participants (n = 44, 26 male, age Mean ± SD = 25.0 ± 2.9 years, BMI = 23.82 ± 2.59kg/m2) participated in a 7-day simulated shiftwork protocol. Participants were randomly allocated to one of three eating conditions. At 00:30, participants consumed a meal comprising 30% of 24 h energy intake (Meal condition; n = 14, 8 males), a snack comprising 10% of 24 h energy intake (Snack condition; n = 14; 8 males) or did not eat during the night (No Eating condition; n = 16, 10 males). Total 24 h individual energy intake and macronutrient content was constant across conditions. During the night, participants reported hunger, gut reaction, and sleepiness levels at 21:00, 23:30, 2:30, and 5:00. Mixed model analyses revealed that the snack condition reported significantly more hunger than the meal group (p < 0.001) with the no eating at night group reporting the greatest hunger (p < 0.001). There was no difference in desire to eat between meal and snack groups. Participants reported less sleepiness after the snack compared to after the meal (p < 0.001) or when not eating during the night (p < 0.001). Gastric upset did not differ between conditions. A snack during the nightshift could alleviate hunger during the nightshift without causing fullness or increased sleepiness.
dc.description.statementofresponsibilityCharlotte C Gupta, Stephanie Centofanti, Jillian Dorrian , Alison M Coates, Jacqueline M Stepien, David Kennaway, Gary Wittert, Leonie Heilbronn, Peter Catcheside, Manny Noakes, Daniel Coro, Dilushi Chandrakumar and Siobhan Banks
dc.identifier.citationNutrients, 2019; 11(6):1-24
dc.identifier.doi10.3390/nu11061352
dc.identifier.issn2072-6643
dc.identifier.issn2072-6643
dc.identifier.orcidKennaway, D. [0000-0002-5864-3514]
dc.identifier.orcidWittert, G. [0000-0001-6818-6065]
dc.identifier.orcidHeilbronn, L. [0000-0003-2106-7303]
dc.identifier.orcidCatcheside, P. [0000-0002-9372-6788]
dc.identifier.urihttp://hdl.handle.net/2440/120079
dc.language.isoen
dc.publisherMDPI
dc.relation.granthttp://purl.org/au-research/grants/nhmrc/1099077
dc.rights© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.source.urihttps://doi.org/10.3390/nu11061352
dc.subjectgastric upset
dc.subjectmeal timing
dc.subjectnightshift
dc.subjectshiftwork
dc.subjectsnack
dc.titleSubjective hunger, gastric upset, and sleepiness in response to altered meal timing during simulated shiftwork
dc.typeJournal article
pubs.publication-statusPublished

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