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Breakfast or burn? study tests fasted exercise for weight loss

NCT ID NCT07487090

Disease control Sponsor: Arkansas Colleges of Health Education Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two ways of doing aerobic exercise: before eating (fasted) versus after eating (fed). Over 16 weeks, 40 adults with obesity will follow a supervised exercise program. Researchers will measure changes in body fat, blood fats, blood pressure, and appetite hormones to see if fasted exercise leads to better weight loss and heart health.

What this could mean

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

Active substance
aerobic exercise (fasted or fed state)
What this could lead to
If it works, this could point toward a simple, cost-free way to boost weight loss and heart health by timing exercise before breakfast.
What could go wrong
This is a small early-phase trial with only 40 participants, so results may not apply to everyone. Fasted exercise might also increase appetite, limiting weight loss.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 40 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2026

Expected to finish

Dec 2027

An estimate. End dates often move.

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

18 to 59 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Aged 18-59 * BMI 25-45 * Healthy enough to exercise Exclusion Criteria: * Taking medications or supplements that are known to influence energy expenditure, * Currently exercising more than once per week * Currently dieting for weight loss * Currently taking weight loss drugs * Have had a previous weight loss surgery * Currently diagnosed with Diabetes * Currently diagnosed with heart disease (Heart failure, uncontrolled hypertension, uncontrolled hypercholesterolemia, Coronary heart disease)

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Conditions

The condition(s) this trial relates to.

Motor Activity Obesity obesity disorder Weight Loss

As listed by the trial registrant

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

Exercise Obesity Weight loss

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Arkansas Colleges of Health Education Research Institure Health and Wellness Center

    RECRUITING

    Fort Smith, Arkansas, 72916, United States

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