Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Eating only 9 hours a day: surprising effects on bones and gut in older women

NCT ID NCT05548517

Knowledge-focused Sponsor: Rutgers, The State University of New Jersey 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether eating only during a 9-hour window each day (time-restricted eating) affects bone health, weight, and gut bacteria in overweight or obese older women. 49 postmenopausal women were randomly assigned to either eat within a 9-hour window or a 12-hour window, while also reducing calories. The goal was to see if the timing of meals makes a difference beyond just cutting calories. No treatment or medication was tested.

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

49 people

The number who actually took part.

Started

Oct 2022

Finished

Sep 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

50 to 79 years

Sex

Female participants only

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: * Postmenopausal women (\>2 years since last menses) * Body mass index (25-45 kg/m2) * Agree to be randomly assigned to consume food for ≤ 9 hours/day or ≥12 hours/day * Must attend on-site visits (about 10) in New Brunswick, NJ, USA (transportation/reimbursement for travel not included) Exclusion Criteria: * Participants with \>5% weight loss in the past 6 months or extreme dietary/physical activity habits * An inability to follow the experimental intervention or to perform the required specimen collections * Antibiotic use in the past 2 months * Current diagnosis, or history of cancer in past 3 years * History of surgical procedure for weight loss in the past 3 years * Current diagnosis or history of bone diseases, type I or II diabetes, gastrointestinal disease, hyperparathyroidism, untreated thyroid disease, significant immune, hepatic, cardiac, or renal disease * Uncontrolled hypertension or hyperlipidemia in abnormal ranges * Regular use of medications that affect bone metabolism, including bisphosphonates or hormone replacement. * A colonoscopy within the past 2 months * Alcohol or illicit drug abuse * Current smoker or having quit smoking in the past 3 months * Shift work * Participation in another clinical research trial which may interfere with the results of this study.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Bone loss are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

Bone Diseases, Metabolic Intermittent Fasting Obesity osteoporosis Overweight Weight Loss

As listed by the trial registrant

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

Bone loss Time restricted feeding Weight loss

Contacts and locations

Locations

  • Rutgers University - NJ Inst Food Nutrition & Health

    New Brunswick, New Jersey, 08901, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.