OverconsumptionNCT07423845
Nutri-score Labels on the Nutritional Quality of Out-of-home Food Selection
A study testing Labelling condition - Calorie labelling, Labelling condition - Nutri-score labelling and Labelling condition: Nutri-score labelling + educational intervention in people with Overconsumption and Obesity, run by University of Liverpool at 1 site in United Kingdom.
Trial summary
Participants will be asked to make hypothetical food choices in an online simulation study of an OOH delivery app. This study will be a three-arm randomised controlled design, with intervention type as the 3-level grouping variable (Nutri-score labelling vs. Nutri-score labelling with educational intervention vs. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Overconsumption, Obesity
- What is being tested?
- Labelling condition - Calorie labelling, Labelling condition - Nutri-score labelling and Labelling condition: Nutri-score labelling + educational intervention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 870 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- 8 Dec 2025to 27 Mar 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Aged 18+
- Frequent user of food delivery platforms (at least once a month on average)
- Can complete the study on a laptop or desktop
Who cannot join
- 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)
Trial locations and contacts
1 site in 1 country.
United Kingdom1 site
University of Liverpool
Liverpool, Merseyside, L69 7ZA
About this study
Official title: The Impact of Nutri-score Labels on the Nutritional Quality of Out-of-home Food Selection in a Delivery Platform Setting: An Online Randomised Controlled Trial
Participants will be asked to make hypothetical food choices in an online simulation study of an OOH delivery app. This study will be a three-arm randomised controlled design, with intervention type as the 3-level grouping variable (Nutri-score labelling vs. Nutri-score labelling with educational intervention vs. no labelling).
- Conditions
- Overconsumption, Obesity
- Being tested
- Labelling condition - Calorie labelling, Labelling condition - Nutri-score labelling, Labelling condition: Nutri-score labelling + educational intervention
- Keywords
- Nutri-score, Food choice, Delivery app, out-of-home food
- Medical subject headings
- Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Labelling condition - Calorie labellingBehavioural
Participants will be asked to choose a meal through a virtual delivery app where four outlets are presented. Participants will be provided with a menu with calorie labelling.
Labelling condition - Nutri-score labellingBehavioural
Participants will be asked to choose a meal through a virtual delivery app where four outlets are presented. Participants will be given menus with calorie and Nutri-score labelling.
Labelling condition: Nutri-score labelling + educational interventionBehavioural
Participants will be asked to choose a meal through a virtual delivery app where four outlets are presented. Participants will be given menus with calorie and Nutri-score labelling.
Prior to selecting their meal, participants will be asked to read an article about Nutri-score.
| Study group | Role | What they receive |
|---|---|---|
| Control | Experimental | Participants will be presented with a menu with calorie labelling only Receives: Behavioral: Labelling condition - Calorie labelling |
| Nutri-score labelling | Experimental | Participants will be presented with a menu with calorie labelling and Nutri-score labelling Receives: Behavioral: Labelling condition - Nutri-score labelling |
| Nutri-score labelling + educational intervention | Experimental | Participants will be presented with a menu with calorie labelling and Nutri-score labelling. Prior to the food choice task, participants will read an article on Nutri-score as an educational intervention. Receives: Behavioral: Labelling condition: Nutri-score labelling + educational intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Healthiness of selected meal
In line with published research into Nutri-score, the investigators will assess the healthiness of meals using UK Nutrient Profiling Model (NPM) scores(16). These scores are calculated in a similar way to Nutri-score, whereby the total value of positive nutrients is subtracted from the total value of negative nutrients. Lower scores represent healthier items. Scores range from -15 (healthiest) to 40 (least healthy).
To account for the likely event of multiple items being selected to form a meal, the investigators will calculate a mean NPM score, weighted by the energy content of individual food items. This will be done using the 'weighted.mean'(37) function in R grouped by participant so the weights are specific to individual orders. The following code will be used for this:
weighted_ppt<-combine %>% group_by(ppt) %>% summarise(score = weighted.mean(nutriscore, meal_kcal))
Measured: Day 1 of 1: Food orders (item names, energy content, UK Nutrient Profiling Model scores) will be recorded immediately after the baseline questionnaire. The recorded information will be used to calculate weighted NPM scores.
Nutri-score label of selected food items
Nutri-score values of each menu item were calculated prior to creating the online ordering platform. To calculate overall scores, the total value of positive nutrients is subtracted from the total value of negative nutrients. Lower scores represent healthier items. Thresholds are used to dictate the Nutri-score value assigned to items, with A (healthiest) to E (least healthy)
When participants complete the food choice task, the Nutri-score labels (A-E) of each item selected by participants will be recorded by the online platform.
Measured: Day 1 of 1: Food orders (item names, NS values) will be recorded immediately after the baseline questionnaire when participants select their food orders.
Secondary outcomes (1)
Energy content of all food ordered
The total energy content (kcal) of food items selected by participants will be recorded by the online study platform. Nutritional information to inform this was taken from the food outlet websites.
Measured: Day 1 of 1: The energy content selected by participants will be recorded immediately after the baseline questionnaire when participants select their food orders.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Feb 2026
- Study start8 Dec 2025
- Primary completion27 Mar 2026
- Study completion27 Mar 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for OverconsumptionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 870 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Liverpool
- Sponsor type
- University, hospital or other
- Collaborators
- Aston University, University of Bath, University of Exeter, Liverpool John Moores University, King's College London
- Responsible party
- Sponsor
- Investigators
- Eric Robinson, Principal investigator, University of Liverpool
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07423845
- Sponsor's protocol ID
- NS consortium study
- Status last verified
- Oct 2025
- First submitted
- 25 Nov 2025
- Last updated
- 1 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Anonymised participant data will be placed on the Open Science Framework for other researchers want to use in the future.
Study at a glance
From the registry record, last updated by the sponsor on 1 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Impact of Nutri-score Labels on the Nutritional Quality of Out-of-home Food Selection in a Delivery Platform Setting: An Online Randomised Controlled Trial
- ClinicalTrials.gov ID
- NCT07423845
- Acronym / sponsor ID
- NS consortium study
- Conditions
- Overconsumption, Obesity
- Keywords
- Nutri-score, Food choice, Delivery app, out-of-home food
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 870 participants (actual)
- Lead sponsor
- University of LiverpoolUniversity, hospital or other
- Collaborators
- Aston University, University of Bath, University of Exeter, Liverpool John Moores University, King's College London
- Study start
- 8 Dec 2025 (actual)
- Primary completion
- 27 Mar 2026 (actual)
- Study completion
- 27 Mar 2026 (actual)
- First posted
- 20 Feb 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Participants will be asked to make hypothetical food choices in an online simulation study of an OOH delivery app. This study will be a three-arm randomised controlled design, with intervention type as the 3-level grouping variable (Nutri-score labelling vs. Nutri-score labelling with educational intervention vs. no labelling).
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Control | Experimental | Behavioral: Labelling condition - Calorie labellingParticipants will be presented with a menu with calorie labelling only |
| Nutri-score labelling | Experimental | Behavioral: Labelling condition - Nutri-score labellingParticipants will be presented with a menu with calorie labelling and Nutri-score labelling |
| Nutri-score labelling + educational intervention | Experimental | Behavioral: Labelling condition: Nutri-score labelling + educational interventionParticipants will be presented with a menu with calorie labelling and Nutri-score labelling. Prior to the food choice task, participants will read an article on Nutri-score as an educational intervention. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Aged 18+
- Frequent user of food delivery platforms (at least once a month on average)
- Can complete the study on a laptop or desktop
Key exclusion criteria (3 listed)
- 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)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Labelling condition - Calorie labellingParticipants will be asked to choose a meal through a virtual delivery app where four outlets are presented. Participants will be provided with a menu with calorie labelling. | Behavioural | Control |
| Labelling condition - Nutri-score labellingParticipants will be asked to choose a meal through a virtual delivery app where four outlets are presented. Participants will be given menus with calorie and Nutri-score labelling. | Behavioural | Nutri-score labelling |
| Labelling condition: Nutri-score labelling + educational interventionParticipants will be asked to choose a meal through a virtual delivery app where four outlets are presented. Participants will be given menus with calorie and Nutri-score labelling. Prior to selecting their meal, participants will be asked to read an article about Nutri-score. | Behavioural | Nutri-score labelling + educational intervention |
Primary outcome
Healthiness of selected meal
Time frame: Day 1 of 1: Food orders (item names, energy content, UK Nutrient Profiling Model scores) will be recorded immediately after the baseline questionnaire. The recorded information will be used to calculate weighted NPM scores.
In line with published research into Nutri-score, the investigators will assess the healthiness of meals using UK Nutrient Profiling Model (NPM) scores(16). These scores are calculated in a similar way to Nutri-score, whereby the total value of positive nutrients is subtracted from the total value of negative nutrients. Lower scores represent healthier items. Scores range from -15 (healthiest) to 40 (least healthy). To account for the likely event of multiple items being selected to form a meal, the investigators will calculate a mean NPM score, weighted by the energy content of individual food items. This will be done using the 'weighted.mean'(37) function in R grouped by participant so the weights are specific to individual orders. The following code will be used for this: weighted_ppt<-combine %>% group_by(ppt) %>% summarise(score = weighted.mean(nutriscore, meal_kcal))
Nutri-score label of selected food items
Time frame: Day 1 of 1: Food orders (item names, NS values) will be recorded immediately after the baseline questionnaire when participants select their food orders.
Nutri-score values of each menu item were calculated prior to creating the online ordering platform. To calculate overall scores, the total value of positive nutrients is subtracted from the total value of negative nutrients. Lower scores represent healthier items. Thresholds are used to dictate the Nutri-score value assigned to items, with A (healthiest) to E (least healthy) When participants complete the food choice task, the Nutri-score labels (A-E) of each item selected by participants will be recorded by the online platform.
1 secondary outcome
Energy content of all food ordered
Time frame: Day 1 of 1: The energy content selected by participants will be recorded immediately after the baseline questionnaire when participants select their food orders.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 May 2026.
- Individual participant dataSharing planned: Yes. Anonymised participant data will be placed on the Open Science Framework for other researchers want to use in the future.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Eric Robinson principal investigator
University of Liverpool
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Labelling condition - Calorie labelling, Labelling condition - Nutri-score labelling and Labelling condition: Nutri-score labelling + educational intervention in people with Overconsumption and Obesity, run by University of Liverpool at 1 site in United Kingdom.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 1 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Healthiness of selected meal (time frame: Day 1 of 1: Food orders (item names, energy content, UK Nutrient Profiling Model scores) will be recorded immediately after the baseline questionnaire. The recorded information will be used to calculate weighted NPM scores.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2026.