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Related Experiment Videos

Nighttime eating: a descriptive study.

Martina de Zwaan1, Deborah B Roerig, Ross D Crosby

  • 1Department of Psychosomatic Medicine and Psychotherapy, University of Erlangen-Nuremberg, Erlangen, Germany. martina.dezwaan@psych.imed.uni-erlangen.de

The International Journal of Eating Disorders
|March 3, 2006
PubMed
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Night eating syndrome (NES) definitions vary, and this study found few participants met strict criteria. Further research is needed to understand nighttime eating behaviors and their links to sleep disorders.

Area of Science:

  • Behavioral Science
  • Sleep Medicine
  • Psychiatry

Background:

  • The definition of night eating syndrome (NES) lacks consistency across existing literature.
  • There is a need to explore broader criteria, including subsyndromal cases, before finalizing diagnostic constructs for NES.

Purpose of the Study:

  • To gather data on individuals with broadly defined nighttime eating issues.
  • To assess the prevalence of NES according to different diagnostic criteria.
  • To explore the relationship between nighttime eating, binge eating disorder, obesity, and sleep disturbances.

Main Methods:

  • Recruited 106 participants with broadly defined nighttime eating problems via newspaper advertisements.
  • Conducted phone interviews using validated instruments: Night Eating Questionnaire, Night Eating Syndrome History and Inventory, Eating Disorder Questionnaire, Structured Clinical Interview for DSM-IV, and Sleep Disorder Questionnaire.

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Main Results:

  • Only 29.2% met original NES criteria, and 13.2% met recent proposed criteria.
  • Modest overlap was observed between nighttime eating problems and binge eating disorder (BED).
  • 57.5% reported regular nocturnal eating; dieting was not a frequent precursor, but parasomnias were common.

Conclusions:

  • The study confirms previous observations regarding nighttime eating behaviors.
  • Nighttime eating remains an evolving concept requiring interdisciplinary collaboration between eating disorder and sleep researchers.