Effects of intermittent fasting on sleep and quality of life
Official title: Impact of Intermittent Fasting on Sleep and Quality of Life Among Healthy Adults
Run by Université Libre de Bruxelles · NCT06959069 · Data updated 2026-11-12
This study is testing if different schedules of intermittent fasting can improve sleep quality and overall well-being in healthy volunteers.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 36 (estimated) |
| Sponsor | Université Libre de Bruxelles Academic / other |
| Locations | 1 site (Brussels) |
| Status | Recruiting |
| Started | March 17, 2025 |
| Main results expected | May 30, 2026 |
| Study ends | August 30, 2026 |
| Registry record updated | May 6, 2025 |
| Trial ID | NCT06959069 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are healthy adults aged 18 to 65 with a BMI between 18.5 and 29.9.
✕Probably not a fit
Patients with existing sleep disorders, significant medical conditions, or those who are underweight or obese may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial investigates how intermittent fasting influences sleep quality, quality of life, and fatigue among healthy volunteers. Participants will be divided into two groups, alternating between two different fasting windows: an early morning feeding window (8 a.m. to 4 p.m.) and a late feeding window (12 p.m. to 8 p.m.). The study will assess changes in sleep metrics and quality of life using validated questionnaires over a 10-week period. Researchers aim to determine if one fasting window is more beneficial than the other in improving these outcomes.
Why it matters
Potential benefit: If successful, this study could provide insights into dietary strategies that enhance sleep quality and overall well-being.
How similar studies have gone: While intermittent fasting has been explored in various contexts, this specific comparison of feeding windows on sleep and quality of life is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Healthy subjects * Adult subjects - age: between 18 and 65 years old * Subjects with a BMI between 18.5 and 29.9 kg/m\^2 * Male and female subjects Exclusion Criteria: * Subjects \< 18 years old * Subjects with Diabetes Mellitus (type 1 and type 2) * Pregnant and/or breastfeeding and/or postpartum women * Underweight subjects (BMI \< 18.5) * Obese subjects (BMI \> 30) * Subjects with confirmed sleep disorders (requiring CPAP or sleep medication (sleeping pills)) * Subjects with renal failure (GFR \< 30 ml/min/1.73 m\^2) or liver disorder * Subjects with serious cardiovascular, respiratory, neurological, or metabolic medical conditions * Subjects with malignant tumors * Subjects with a serious mental disorder requiring medication (e.g., antidepressants or anxiolytics) * Subjects with eating disorders * Subjects who have undergone major surgery or have been hospitalized due to major medical condition (surgery, stay in intensive care) within the last one year * Subjects who have lost more than 10% of their body weight within the last one year * Subjects actively participating in a weight-loss program * Subjects with alcohol use disorder (maximum 10 standard alcoholic drinks per week, 2 standard alcoholic drinks per day) * Subjects with substance use disorder * Subjects unable to provide informed consent * Subjects who do not participate simultaneously in another clinical trial
Where it's running
-
Libre University, Faculty of Human Motor Sciences, Campus Erasme
Brussels, Belgium Recruiting
Study contacts
- Study coordinator: Marianna Spinou, Medical Doctor
- Email: marspinou@med.uoa.gr
- Phone: 00306939737204
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.