Self-report–based estimates of energy intake offer an inadequate basis for scientific conclusions

Schoeller, Dale A.; Thomas, Diana M.; Archer, Edward; Heymsfield, Steven B.; Blair, Steven N.; Goran, Michael I.; Hill, James O.; Atkinson, Richard L.; Corkey, Barbara E.; Foreyt, John P.; Dhurandhar, Nikhil V.; Kral, John G.; Hall, Kevin D.; Hansen, Barbara C.; Heitmann, Berit Lilienthal; Ravussin, Éric; Allison, David B.

doi:10.3945/ajcn.113.062125

Cited by 164 publications

(143 citation statements)

References 16 publications

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“…Such studies are of questionable accuracy and are also prone to several biases, including the well-known social desirability response bias (7)(8)(9)(10)(26)(27)(28)(29). It is remarkable that, despite the numerous limitations of self-reported data, the subjective responses by our study subjects correlated significantly and congruently with several objective biological measures of cardiometabolic health.…”

Section: Discussionmentioning

confidence: 79%

Dietary habits and leisure-time physical activity in relation to adiposity, dyslipidemia, and incident dysglycemia in the pathobiology of prediabetes in a biracial cohort study

Boucher¹,

Adesanya²,

Owei³

et al. 2015

Metabolism

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Background-Dietary and exercise data are frequently recorded in clinical research, but their correlation with metabolic measures needs further evaluation.Objective-We examined the association of food and exercise habits with body size, lipid profile, and glycemia in a prospective biracial cohort.Address for correspondence and reprints: Samuel Dagogo-Jack, MD, Division of Endocrinology, Diabetes and Metabolism, 920 Madison Avenue, Suite 300A, University of Tennessee Health Science Center, Memphis, TN 38163, sdj@uthsc.edu. Conflicts of Interest:The authors have no relevant conflict of interest to disclose with regard to the content of this manuscript. DISCLOSURE STATEMENTThe authors have no relevant conflict of interest to disclose with regard to the content of this manuscript. AUTHORS' CONTRIBUTIONSS.D.-J., as the principal investigator and developed the study concept and design, and wrote the manuscript; A.B. collected data, reviewed and revised the manuscript; E.A.O.A. collected data, reviewed and revised the manuscript; S.E. collected data, reviewed and reviewed the manuscript; I.O. collected data, reviewed and revised the manuscript; S.E. collected data, conducted statistical analysis and reviewed the manuscript; A.K.G. reviewed and revised the manuscript; J.W. performed statistical analyses; C.E. collected data and reviewed and revised the manuscript. S.D-J. had primary responsibility for final content. All authors read and approved the final manuscript. Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. 1 POP-ABC Research Group HHS Public Access Conclusions-AmongAfrican-American and Caucasian offspring of parents with T2DM, selfreported dietary and exercise habits correlated with measures of adiposity and dyslipidemia; however, physical activity, but not dietary recall, significantly predicted incident dysglycemia during 5.5 years of follow-up.

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Section: Discussionmentioning

confidence: 79%

Dietary habits and leisure-time physical activity in relation to adiposity, dyslipidemia, and incident dysglycemia in the pathobiology of prediabetes in a biracial cohort study

Boucher¹,

Adesanya²,

Owei³

et al. 2015

Metabolism

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“…However, selfreported dietary intake did not indicate different caloric intake between the two groups; the degree of CR may have limited our ability to detect small differences in caloric intake. Furthermore, we were not able to accurately determine the actual degree of CR or modification of diet in individuals given the well-known bias of self-reported dietary intake [40]. Nonetheless, providing lunches and dinners on 4 days each week provided meal samples for participants and helped us to reduce the potential effects of SR on modifying diet.…”

Section: Discussionmentioning

confidence: 99%

Influence of sleep restriction on weight loss outcomes associated with caloric restriction

Wang

Sparks

Bowyer

et al. 2018

Sleep

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Study Objectives: To examine the effects of moderate sleep restriction (SR) on body weight, body composition, and metabolic variables in individuals undergoing caloric restriction (CR). Methods:Overweight or obese adults were randomized to an 8 week caloric restriction (CR) regimen alone (n = 15) or combined with sleep restriction (CR + SR) (n = 21). All participants were instructed to restrict daily calorie intake to 95 per cent of their measured resting metabolic rate. Participants in the CR + SR group were also instructed to reduce time in bed on five nights and to sleep ad libitum on the other two nights each week. Results:The CR + SR group reduced sleep by 57 ± 36 min per day during SR days and increased sleep by 59 ± 38 min per day during ad libitum sleep days, resulting in a sleep reduction of 169 ± 75 min per week. The CR and CR + SR groups lost similar amounts of weight, lean mass, and fat mass. However, the proportion of total mass lost as fat was significantly greater (p = 0.016) in the CR group. This proportion was greater than body fat percentage at baseline for the CR (p = 0.0035), but not the CR + SR group. Resting respiratory quotient was reduced (p = 0.033) only in CR, and fasting leptin concentration was reduced only in CR + SR (p = 0.029).Conclusions: Approximately 1 hr of SR on five nights a week led to less proportion of fat mass loss in individuals undergoing hypocaloric weight loss, despite similar weight loss. SR may adversely affect changes in body composition and "catch-up" sleep may not completely reverse it. Clinical trial registration: ClinicalTrials.gov (NCT02413866)Key words: sleep restriction; weight loss; body composition; chronic; caloric restriction Statement of SignificancePrevious studies suggest that sleep restriction during caloric restriction adversely affects weight-loss outcomes. This study extends previous findings by examining the effects of a much longer duration of intervention (8 weeks) using a randomized controlled trial (caloric restriction alone or combined with sleep restriction). Furthermore, the sleep restriction was moderate, approximated 60 min shorter on the 5 days of restricted sleep each week. Ad libitum sleep was allowed on the other 2 days each week so that the sleep pattern mimicked real life. We found that sleep restriction resulted in less loss of fat but greater loss of lean mass among the total mass lost, despite similar weight loss between the two groups. Other metabolic changes were also observed.

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“…The difficulty with undertaking research in free-living settings is the absence of an unobtrusive measure to record valid data on contexts and dietary intake (Dhurandhar et al, 2014;Kanarek & Orthen-Gambill, 1986;Kissileff, 1992;Meiselman, 1992a;Schoeller et al, 2013). Lab-based research, though stringent in design, is not always indicative of real-world eating behaviours (Bellisle et al, 2004;Berry et al, 1985;De Castro, 2000;Meiselman, 1992aMeiselman, , 2006Polivy et al, 1979).…”

Section: Introductionmentioning

confidence: 98%

The use of a wearable camera to capture and categorise the environmental and social context of self-identified eating episodes

et al. 2015

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Self-report–based estimates of energy intake offer an inadequate basis for scientific conclusions

Cited by 164 publications

References 16 publications

Dietary habits and leisure-time physical activity in relation to adiposity, dyslipidemia, and incident dysglycemia in the pathobiology of prediabetes in a biracial cohort study

Dietary habits and leisure-time physical activity in relation to adiposity, dyslipidemia, and incident dysglycemia in the pathobiology of prediabetes in a biracial cohort study

Influence of sleep restriction on weight loss outcomes associated with caloric restriction

The use of a wearable camera to capture and categorise the environmental and social context of self-identified eating episodes

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