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Color-Coded labels on delivery apps could nudge healthier eating

NCT ID NCT07423845

Knowledge-focused Sponsor: University of Liverpool Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 completed online trial tested whether adding Nutri-Score labels (A to E, like a nutrition grade) to delivery app menus helps people choose healthier meals. 870 adults who regularly use food delivery apps made hypothetical meal choices in a simulated app. The study compared three groups: no labels, calorie labels plus Nutri-Score, and Nutri-Score with extra educational info. The goal was to see if the labels improve the nutritional quality of selected meals.

What this could mean

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

Active substance
Nutri-Score labelling (a color-coded nutritional label on menus)
What this could lead to
If it works, this could show that simple front-of-pack labels like Nutri-Score help people make healthier choices when ordering food online.
What could go wrong
This was an online simulation, not a real ordering situation. People may behave differently when actually spending money and eating. The results may not apply to everyone.

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

870 people

The number who actually took part.

Started

Dec 2025

Finished

Mar 2026

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 years and older

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+ * Frequent user of food delivery platforms (at least once a month on average) * Can complete the study on a laptop or desktop Exclusion Criteria: * Current or previous diagnosis of an eating disorder * Currently on appetite supressing medication * No dietary restrictions including dairy free, sugar free, gluten free (vegetarians and vegans are eligible to participate)

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder

As listed by the trial registrant

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

Obesity Overconsumption

Contacts and locations

Locations

  • University of Liverpool

    Liverpool, Merseyside, L69 7ZA, United Kingdom

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