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Fasting or mediterranean diet? new study pits them Head-to-Head for weight loss

NCT ID NCT07250659

Disease control Sponsor: Kamil Dağcılar Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed study compared two popular diets for weight loss in 120 obese adults. One group followed intermittent fasting (eating only between 1 PM and 9 PM), while the other followed a traditional Mediterranean diet. Both diets cut about 500 calories per day. The goal was to see which approach led to more weight loss over 4 weeks.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Intermittent fasting (16:8 time-restricted eating) and Mediterranean diet
What this could lead to
If successful, this could show that intermittent fasting is as effective as the Mediterranean diet for short-term weight loss, offering another simple option for obesity management.
What could go wrong
This was a small, short-term (4-week) study with very healthy participants (no chronic diseases, no medications). Results may not apply to the general obese population or show long-term effects.

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

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

120 people

The number who actually took part.

Started

Sep 2022

Finished

Dec 2022

Lead sponsor

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

20 to 55 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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: * BMI ≥ 30 kg/m² * absence of chronic diseases * no regular use of medications * non smokers * non alcohol users * not pregnant or breastfeeding * no history of bariatric surgery * no significant weight fluctuations (±5 kg) in the past 6 months * no pregnancy plans during the study period Exclusion Criteria: * BMI \< 30 kg/m² * Presence of any diagnosed chronic disease (e.g., diabetes, cardiovascular disease, thyroid disorders, renal or hepatic disease) * Regular use of medications that could affect metabolism, appetite, or body weight * Smoking or alcohol consumption * Pregnancy or breastfeeding during the study period * History of bariatric or other weight-related surgical procedures * Significant weight changes (gain or loss ≥5 kg) within the past 6 months * Planning pregnancy during the study period * Inability or unwillingness to comply with dietary intervention and follow-up requirements

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Conditions

The condition(s) this trial relates to.

Intermittent Fasting Obesity obesity disorder Weight Loss

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Weight loss

Contacts and locations

Locations

  • European University of Lefke

    Lefka, 99770, Cyprus

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