Can eating all meals in 6 hours curb appetite? small study investigates
NCT ID NCT07500792
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study looks at whether eating all meals within a 6-hour window (early time-restricted eating) changes appetite and hunger-related hormones compared to eating over 12 hours. Twelve healthy men without obesity will try both eating patterns on separate days. Researchers will measure hormone levels and how much they eat afterward to see if meal timing affects appetite.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- early Time-Restricted Eating (eTRE)
- What this could lead to
- If successful, this could provide insights into how meal timing affects appetite and energy balance, potentially informing future dietary guidelines.
- What could go wrong
- This is a very small, early-stage study in healthy men only, so results may not apply to women or people with health conditions. The intervention lasts just one day, so long-term effects are unknown.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 12 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Male participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Males aged 18 years or older. * BMI between 18.5 and 24.9 kg/m² * Have stable body mass for at least three months (within ±2 kg). Exclusion Criteria: * Females * People who are younger than 18 or older than 65 years old. * Following a special diet (e.g. weight loss, vegetarian or vegan, etc.). * Have food allergies related to the study. * Smoking. * Taking any medications. * Suffering from metabolic health issues, e.g., history of diabetes, cardiovascular disease, or eating disorders.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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New Lister Building at Glasgow Royal Infirmary Glasgow, United Kingdom G31 2ER
Glasgow, G31 2ER, United Kingdom
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