NCT06939231

Brief Summary

The aim of this study is to test the efficacy, feasibility, and acceptability of the UCD PLAN'EAT Living Lab in promoting sustainable and healthy dietary behaviours among university students. This study will compare within participant changes in diet-related pre-specified outcomes (detailed below) at Living Lab baseline and endpoint and examine differences across participant engagement levels (e.g., low engagement versus high engagement) in Living Lab studies and events/ activities.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
520

participants targeted

Target at P75+ for not_applicable

Timeline
8mo left

Started Feb 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress77%
Feb 2024Dec 2026

Study Start

First participant enrolled

February 26, 2024

Completed
1 year until next milestone

First Submitted

Initial submission to the registry

March 5, 2025

Completed
2 months until next milestone

First Posted

Study publicly available on registry

April 22, 2025

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

February 9, 2026

Status Verified

February 1, 2026

Enrollment Period

2.8 years

First QC Date

March 5, 2025

Last Update Submit

February 4, 2026

Conditions

Dietary BehavioursSustainable Healthy DietPersonalised Nutrition

Keywords

Sustainable dietPersonalised nutritionDietary behavioursUniversityStudentsLiving Lab

Outcome Measures

Primary Outcomes (1)

  • Living Lab: Legume intake (grams per day)

    Student participants will record their diet at LL baseline (habitual diet) and LL endpoint (intervention diet) using an online 24-hour recall method. Legume intake will be calculated using dietary intake records (baseline: up to 3x 24-hour recalls; endpoint: up to 3x 24-hour recalls). The primary outcome measure is the change in legume intake (g/ day) as a result of the intervention.

    32 months

Secondary Outcomes (5)

  • Living Lab: Plant-based food intake (grams per day)

    32 months

  • Living Lab: Fruit intake (grams per day)

    32 months

  • Living Lab: Vegetable intake (grams per day)

    32 months

  • Living Lab: Meat intake (grams per day)

    32 months

  • Living Lab: High fat, sugar, salt (HFSS) food intake (grams per day)

    32 months

Other Outcomes (11)

  • Living Lab: Diet-related greenhouse gas emissions reported as kilograms of carbon dioxide equivalents per day

    32 months

  • Living Lab: Self-reported factors influencing sustainable and healthy dietary behaviours: Self-efficacy

    32 months

  • Living Lab: Self-reported factors influencing sustainable and healthy dietary behaviours: Self-reported behavioural automaticity index

    32 months

  • +8 more other outcomes

Study Arms (1)

Living Lab approach to improve sustainable and healthy dietary behaviours.

EXPERIMENTAL

Living Lab baseline data collection measures, invitation to Study 1 and Study 2 and events/ activities (optional), and LL endpoint data collection measures.

Behavioral: Living Lab approach to improve sustainable and healthy dietary behaviours

Interventions

Living Lab approach to improve sustainable and healthy dietary behavioursBEHAVIORAL

Living Lab baseline data collection measures, plus invitations to Study 1 and Study 2 and events/ activities (optional), and LL endpoint data collection measures.

Living Lab approach to improve sustainable and healthy dietary behaviours.

Eligibility Criteria

Age18 Years - 30 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Be a UCD student (aged 18-30 years) attending Belfield Campus.
  • Be a healthy adult between the age of 18-30 years old, and in good general health.

You may not qualify if:

  • Do not attend UCD Belfield Campus.
  • Are under 18 years of age or over 30 years of age.
  • Have a diagnosis of an acute or chronic medical condition that could interfere with the outcomes of the study. Such diagnoses include (but are not limited to) cardiovascular disease, diabetes mellitus, cancers (within the last 5 years), etc.
  • Stakeholder participants:
  • \- Stakeholder on or connected to UCD Campus.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University College Dublin

Dublin, Ireland

RECRUITING

Related Publications (7)

  • Appleton KM, McGill R, Neville C, Woodside JV. Barriers to increasing fruit and vegetable intakes in the older population of Northern Ireland: low levels of liking and low awareness of current recommendations. Public Health Nutr. 2010 Apr;13(4):514-21. doi: 10.1017/S1368980009991790.

    PMID: 20230659BACKGROUND

  • Kliemann N, Wardle J, Johnson F, Croker H. Reliability and validity of a revised version of the General Nutrition Knowledge Questionnaire. Eur J Clin Nutr. 2016 Oct;70(10):1174-1180. doi: 10.1038/ejcn.2016.87. Epub 2016 Jun 1.

    PMID: 27245211BACKGROUND

  • Gardner B, Abraham C, Lally P, de Bruijn GJ. Towards parsimony in habit measurement: testing the convergent and predictive validity of an automaticity subscale of the Self-Report Habit Index. Int J Behav Nutr Phys Act. 2012 Aug 30;9:102. doi: 10.1186/1479-5868-9-102.

    PMID: 22935297BACKGROUND

  • Pliner P, Hobden K. Development of a scale to measure the trait of food neophobia in humans. Appetite. 1992 Oct;19(2):105-20. doi: 10.1016/0195-6663(92)90014-w.

    PMID: 1489209BACKGROUND

  • Baungaard C, Lane KE, Richardson L. Understanding nutrition students' knowledge, perceived barriers and their views on the future role of nutritionists regarding sustainable diets. Nutr Bull. 2023 Dec;48(4):572-586. doi: 10.1111/nbu.12649. Epub 2023 Nov 10.

    PMID: 37950523BACKGROUND

  • Kliemann N, Beeken RJ, Wardle J, Johnson F. Development and validation of the Self-Regulation of Eating Behaviour Questionnaire for adults. Int J Behav Nutr Phys Act. 2016 Aug 2;13:87. doi: 10.1186/s12966-016-0414-6.

    PMID: 27484457BACKGROUND

  • Weller KE, Greene GW, Redding CA, Paiva AL, Lofgren I, Nash JT, Kobayashi H. Development and validation of green eating behaviors, stage of change, decisional balance, and self-efficacy scales in college students. J Nutr Educ Behav. 2014 Sep-Oct;46(5):324-33. doi: 10.1016/j.jneb.2014.01.002. Epub 2014 Mar 5.

    PMID: 24613445BACKGROUND

Central Study Contacts

Prof Eileen R Gibney, PhD (Prof)

CONTACT

+ 353 1 7162819eileen.gibney@ucd.ie

Dr Aifric M O'Sullivan, PhD

CONTACT

+353 1 716 2824aifric.osullivan@ucd.ie

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SEQUENTIAL
Model Details: Sequential
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 5, 2025

First Posted

April 22, 2025

Study Start

February 26, 2024

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

February 9, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

At the beginning of the study, each participant will have a study code assigned to them. All data collected from the study will be stored using these unique study codes. A file will be set up which will be stored in a separate location to the study data. This file will contain a list which will link each participants' contact details to the corresponding ID code. All stored information will be password-protected and only accessible to the research team/ named researchers on the project. At the end of the LL project, all data will be anonymised. Pseudonymised/ anonymised data will be shared with PLAN'EAT partners where appropriate.

Locations

IE(1)