Does Meal Timing Affect Energy Expenditure

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

11 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-10-31

Study Completion Date

2017-11-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to find out if meal timing affects calories burned and blood sugar levels.

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

Time-Restricted Eating With Exercise

NCT05486702

Obesity

UNKNOWN NA

Timing of Meals for Weight Loss

NCT02204735

Overweight Obesity Weight Loss

COMPLETED NA

Effects of Two-weeks of Time Restricted Feeding on Basal and Postprandial Metabolism in Healthy Men

NCT03969745

Metabolic Health

COMPLETED NA

Time Restricted Eating, Eating Behaviors, and Cardiometabolic Risk in Emerging Adult Women

NCT06145009

Time Restricted Eating Eating Behavior Diet, Healthy +1 more

RECRUITING NA

Randomized Study of Daytime vs. Delayed Eating: Effect on Weight and Metabolism

NCT04414644

Obesity

COMPLETED NA

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

10 overweight adult men and women will eat according to two different eating schedules: grazing and time-restricting feeding ("early eating"). While on each eating schedule, metabolism (calories burned) will be measured during a 24-hour stay in a respiratory chamber. Glucose levels-as well as key diurnal rhythms such in heart rate-will also be measured continuously. This study requires two 1-week periods of participation.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Meal Timing

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Grazing

Participants will eat meals spread over the course of the day ("grazing").

Group Type PLACEBO_COMPARATOR

Grazing

Intervention Type BEHAVIORAL

Time-restricted feeding (early eating)

Participants will eat meals only in the early part of the day (early lunch and very early dinner).

Group Type EXPERIMENTAL

Time-restricted feeding (early eating)

Intervention Type BEHAVIORAL

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Grazing

Intervention Type BEHAVIORAL

Time-restricted feeding (early eating)

Intervention Type BEHAVIORAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Are 20-45 years of age
* Have a weight between 150 and 220 lbs
* Have a body mass index between 25 and 35 kg/m2 inclusive (a number calculated from your height and weight)
* If you are a female, have a regular menstrual cycle that is between 25 and 35 days long
* If you are female, had your period within the last 35 days
* Regularly go to sleep between 9:30 pm and 12:00 am
* Regularly eat dinner 9 or more hours after eating breakfast
* Are willing to have about 2/3 cup of your blood stored for future research related to this study

Exclusion Criteria

* Have diabetes or are on anti-diabetes medication
* Suffer from significant cardiovascular, renal (kidney), cardiac (heart), liver, lung or nervous system disease
* Have stomach or intestinal problems
* Regularly use medications such as steroids, beta blockers, adrenergic-stimulating agents, and laxatives
* Take any medications or supplements known to affect sleep, circadian rhythms, or metabolism (with the exception that certain forms of birth control are allowed)
* Have abnormal lab work that is clinically significant in the opinion of the study physician
* Are pregnant or lactating
* Take the Depo Provera shot, or use an Interuterine Device (IUD) or hormone patch for birth control
* If you are on hormonal birth control, have been on a stable dose for less than 3 months
* Have smoked or used nicotine/tobacco products within the last 3 months
* Regularly do competitive sport training
* Perform overnight shift work an average of one or more times per week
* Have an irregular sleep schedule
* Have an irregular eating schedule
* Regularly drink 3 or more drinks of alcohol per day
* Are not able or are unwilling to eat only the food and drink served to you by Pennington Biomedical, while in the study
* Are not able or are unwilling to refrain from strenuous exercise while participating in the study
* Are not able to spend 2 separate full days (for about 25 hours each) at Pennington Biomedical
* Are not able to maintain a consistent sleep schedule while participating in the study
* Are not able to maintain a consistent eating schedule while participating in the study
* Are not able to stop drinking coffee and other caffeine-containing drinks on the day of and day prior to testing

Minimum Eligible Age

20 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes