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Can a 16-Hour fast improve cholesterol and body fat without cutting calories?

NCT ID NCT07871565

Disease control Sponsor: Acibadem 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Oct 13, 2026 · Last updated Oct 14, 2026 · Updated 1 time

Summary

Researchers are testing whether time-restricted eating, which limits all meals to an 8-hour window, can improve body weight, body fat, and blood lipids in women with overweight or obesity and untreated dyslipidemia. The trial compares three approaches: time-restricted eating alone, calorie restriction alone, and a combination of both. Fifty-six sedentary women aged 19 to 65 join an 8-week program, with body measurements and blood tests taken at the start, middle, and end. The goal is to learn whether the timing of eating matters independently of how many calories are consumed.

What this could mean

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

Active substance
time-restricted eating (16:8) and energy-restricted diet
What this could lead to
If time-restricted eating works on its own, it could offer a simpler way for women with overweight and dyslipidemia to improve body composition and blood lipids without counting calories. Combining it with calorie restriction might add extra benefit.
What could go wrong
This is a small, 8-week study of 56 women, so any changes may be short-lived and may not apply to men or other groups. Participants might find the 16-hour fast or calorie restriction hard to stick to, and the trial may not show a clear difference between the approaches.

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

56 people

The number who actually took part.

Started

Feb 2022

Finished

Jul 2024

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

19 to 65 years

Sex

Female participants only

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: * Eligible participants were sedentary women aged 19-65 years with overweight or obesity (BMI ≥ 25 kg/m²) who had received a physician diagnosis of dyslipidemia but were not taking lipid-lowering medication, and who volunteered to take part. Exclusion Criteria: * Pregnancy or lactation * Shift work * smoking * excessive alcohol consumption * a major adverse cardiovascular event in the previous year (acute coronary syndrome, percutaneous coronary interven-tion, coronary artery bypass grafting, hospitalization for congestive heart failure, stroke or transient ischemic attack) * uncontrolled arrhythmia * diabetes mellitus or reactive hypo-glycemia * congenital or immunological disease * acute pancreatitis, cirrhosis or malignancy * a diagnosed eating disorder * stage 4 or 5 chronic kidney disease or dialysis treatment * any concurrent medical nutrition therapy prescribed for another indication (e.g., celiac disease) * previous bariatric surgery * thyroid disease requiring dose titration of replacement therapy within the previous three months (stable replacement therapy for hypothyroidism was not an exclusion criterion) * a major psychiatric disorder.

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Conditions

The condition(s) this trial relates to.

Dyslipidemias inherited lipid metabolism disorder Intermittent Fasting Obesity obesity disorder Overweight

As listed by the trial registrant

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

Dyslipidemia Obesity & overweight

Contacts and locations

Locations

  • Acibadem University

    Istanbul, Turkey (Türkiye)

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