Color-Coded labels on delivery apps could nudge healthier eating

NCT ID NCT07423845

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

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.

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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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