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Early or Delayed Onset of Food Intake in Time-Restricted Eating: Associations with Markers of Obesity in a Secondary Analysis of Two Pilot Studies

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  • Dorothea Kesztyüs

    (Institute of General Practice, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany
    Department of Medical Informatics, Georg-August University, Von-Siebold-Straße 3, 37075 Göttingen, Germany)

  • Petra Cermak

    (Institute of General Practice, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany)

  • Tibor Kesztyüs

    (Department of Medical Informatics, Georg-August University, Von-Siebold-Straße 3, 37075 Göttingen, Germany)

  • Anne Barzel

    (Institute of General Practice, Ulm University Medical Center, Albert-Einstein-Allee 23, 89081 Ulm, Germany)

Abstract

Time-restricted eating (TRE) has rapidly gained interest in the public and the scientific community. One presumed mechanism of action is the adaptation of the eating–fasting rhythm to the evolutionary circadian rhythm of the metabolism. Study results regarding the suggestion that earlier beginning of food intake leads to better outcomes are heterogeneous. We conducted a secondary analysis of pooled data from two pilot studies on TRE to examine an association between the timing of onset of food intake with obesity-related outcomes. Participants ( n = 99, 83 females aged 49.9 ± 10.8 years) were asked to restrict their daily eating to 8–9 h for three months. Tertiles of the onset of food intake were assessed for changes in anthropometry, blood lipid levels, and health-related quality of life. We detected no significant differences in outcomes between early (before 9:47), medium (9:47–10:50), and late onset (after 10:50) of food intake. However, the duration of the eating period was longest in the group with the earliest (8.6 ± 1.0 h) and shortest in the group with the latest onset (7.5 ± 0.8 h). Subsequently, fasting duration was longest in the last group (16.5 h). This may have compromised the results. More research is needed in this area to address this question.

Suggested Citation

  • Dorothea Kesztyüs & Petra Cermak & Tibor Kesztyüs & Anne Barzel, 2021. "Early or Delayed Onset of Food Intake in Time-Restricted Eating: Associations with Markers of Obesity in a Secondary Analysis of Two Pilot Studies," IJERPH, MDPI, vol. 18(18), pages 1-13, September.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:18:p:9935-:d:640124
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    References listed on IDEAS

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    1. Garry Barton & Tracey Sach & Michael Doherty & Anthony Avery & Claire Jenkinson & Kenneth Muir, 2008. "An assessment of the discriminative ability of the EQ-5D index , SF-6D, and EQ VAS, using sociodemographic factors and clinical conditions," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 9(3), pages 237-249, August.
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