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Can changing What's on your plate help you eat less? new study investigates

NCT ID NCT03783507

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study examines whether low-calorie (low energy density) and high-calorie (high energy density) foods act as substitutes in a meal. Researchers will serve 62 healthy-weight adults different combinations of foods across four sessions and measure how much they eat. The goal is to understand how to design meals that naturally reduce calorie intake without feeling deprived.

What this could mean

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

What this could lead to
If successful, this could help design more effective weight-loss diets by understanding how different foods replace each other in a meal.
What could go wrong
This is a small, early-stage observational study in healthy-weight adults, so results may not apply to people with obesity or in real-world eating habits.

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

62 people

The number who actually took part.

Started

Dec 2018

Expected to finish

Dec 2026

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 35 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: * age between 18 and 35 years; * body mass index (BMI) 18.5 to 24.9 kg/m2; * unrestrained eater (≤12 on Three Factor Eating Questionnaire (TFEQ); * chicken or tomato soup, chocolate sugar-free pudding, grapes, blueberry yogurt, macaroni and cheese, vanilla ice cream, pretzels, and honey graham snacks (rate all items ≥ 50mm on a visual analogue scale (VAS); * report regularly eating before 10 am; and * can complete all sessions within 8 weeks of the screening session, will be eligible for the study. Exclusion Criteria: * report binge eating; * report a medical condition that influences eating; * report allergies to foods used in the investigation; * currently smoke; * report dietary restrictions; * report taking a medication that affects appetite; * report being pregnant or breast-feeding; * report being an athlete in training.

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Conditions

The condition(s) this trial relates to.

Feeding Behavior Obesity obesity disorder

As listed by the trial registrant

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

Diet habit Obesity

Contacts and locations

Locations

  • University of Tennessee, Knoxville

    Knoxville, Tennessee, 37996-1920, United States

More trials for these conditions

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