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Which diet wins for weight loss? new study puts three plans to the test

NCT ID NCT07055620

Disease control Sponsor: Selcuk University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed study looked at how three different diet plans—Mediterranean diet, time-restricted feeding (a form of intermittent fasting), and a standard diet—affect eating behavior and weight management in 75 overweight or obese adults aged 20-49. Researchers measured body composition, diet satisfaction, and eating habits to find the most effective approach for long-term weight control.

What this could mean

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

Active substance
dietary intervention (Mediterranean diet, time-restricted feeding, standard diet)
What this could lead to
If successful, this could help identify which diet model works best for weight loss and eating behavior improvement in overweight individuals.
What could go wrong
This is a small, completed trial with 75 participants, so results may not apply to everyone. Diet adherence and individual differences can affect outcomes.

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

75 people

The number who actually took part.

Started

Apr 2025

Finished

Nov 2025

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 49 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: * Being between 20-49 years old * Having a BMI value between 25 kg/m2- 35 kg/m2 * Not having conditions that impair reality assessment ability and cognitive functions, preventing interviews or filling out scales * Being literate * Having a blood test done by a primary care physician within the last seven days * Agreeing to participate in the study and signing the informed consent form Exclusion Criteria: * Pregnant and breastfeeding women, * Those who could not attend one or more interview sessions, * Women who have entered menopause, * Individuals who want to apply another diet model, * Individuals who have a pacemaker or defibrillator implanted due to the theoretical possibility of interference with device activity due to the current field caused by impedance measurements, * Those who have any chronic disease and are on a diet, * Those who regularly use medications that affect metabolism, * Those who use insulin and oral antidiabetic medications, * Those who have allergies or intolerances to any food components of the Mediterranean diet (walnuts, hazelnuts, peanuts, almonds, etc.), * Those who use vitamin/mineral supplements, * Those who have a psychiatric disease diagnosed by a physician. * In order to understand the effectiveness of the diet, individuals will be asked to maintain their physical activity levels. Therefore, individuals who want to increase their physical activity levels in addition to the applied diet will not be included in the study.

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Conditions

The condition(s) this trial relates to.

Intermittent Fasting Obesity obesity disorder

As listed by the trial registrant

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

DIET Intermittent fasting Mediterranean diet

Contacts and locations

Locations

  • Eda Ocak Nutrition and Diet Consultancy

    Konya, Selçuklu, 42100, Turkey (Türkiye)

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