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Impact of Intermittent Fasting on Sleep and Quality of Life
Sponsor: Université Libre de Bruxelles
Summary
The goal of this clinical trial is to investigate the impact of intermittent fasting on sleep, quality of life and fatigue among healthy volunteers. The main questions aim to answer: Whether intermittent fasting would allow participants to experience an improvement in their sleep quality, duration and latency? Whether intermittent fasting would ameliorate participants' quality of life and reduce chronic fatigue symptoms? Researchers will compare the two most prevailing fasting windows of intermittent diet including an early morning feeding window (8 a.m.-4 p.m.) and a late feeding window (12 p.m.-8 p.m.) to see if there is a difference among these feeding windows on sleep and quality of life. Participants will: * Be divided into two groups (group A and group B) that will alternate their fasting windows. * Group A will start with intermittent fasting over a feeding period from 12 p.m. to 8 p.m. for one month, then a two weeks period of usual eating habits (washout period) and finally one month of intermittent fasting with a feeding period from 8 a.m. to 4 p.m. * Group B will follow intermittent fasting over a feeding period from 8 a.m. to 4 p.m for one month, then a two weeks period of usual eating habits (washout period) and finally one month of intermittent fasting with a feeding period from 12 p.m. to 8 p.m. * At enrollment, at the end of each month of intermittent fasting and at the end of washout period participants will be asked to complete some questionnaires and will be submitted to anthropometric measurements using impedance scales. * Participants will be asked to complete an electronic 24 hour recall diary using the Automated Self-Administered 24h Dietary Assessment (ASA24) Tool software once per week every week during study.
Official title: Impact of Intermittent Fasting on Sleep and Quality of Life Among Healthy Adults
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
INTERVENTIONAL
Enrollment
36
Start Date
2025-03-17
Completion Date
2026-08-30
Last Updated
2025-05-06
Healthy Volunteers
Yes
Interventions
Intermittent Fasting - Late feeding window
Intermittent fasting is an eating pattern that consists of alternating periods of fasting of varying duration with periods of eating. In the present study, all participants will follow a time-restricted feeding/eating (TRF/E) that restricts all dietary intake to an 8- hour daily eating window. There will be two different feeding periods. The first window will allow a feeding period from12 p.m. to 8 p.m. (late feeding window).
Intermittent Fasting - Early feeding window
Intermittent fasting is an eating pattern that consists of alternating periods of fasting of varying duration with periods of eating. In the present study, all participants will follow a time-restricted feeding/eating (TRF/E) that restricts all dietary intake to an 8- hour daily eating window. There will be two different feeding periods. The second window will allow a feeding period from 8 a.m. to 4 p.m (early feeding window).
Locations (1)
Libre University, Faculty of Human Motor Sciences, Campus Erasme
Brussels, Belgium