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Dietary BehavioursNCT06631469

Behaviour-focused Personalised Nutrition Intervention

A study testing Personalised behavioural sustainable and healthy dietary recommendations and Personalised sustainable and healthy dietary recommendations in people with Dietary Behaviours and Sustainable Healthy Diet, run by University College Dublin at 1 site in Ireland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study is to test the efficacy, feasibility, and acceptability of a novel, behaviour-focused personalised nutrition intervention compared to a control personalised nutrition intervention for improving adherence to sustainable and healthy dietary recommendations in university students. Read more about this study

Who is it for?
Ages 18 to 30 yearsHealthy volunteers can take part
What is being tested?
Personalised behavioural sustainable and healthy dietary recommendations and Personalised sustainable and healthy dietary recommendations
Could I receive a placebo?
No, everyone receives an active treatment
How many people
57 participants
Where
1 siteIreland
Study dates
1 Oct 2024to 26 Feb 2025
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 to 30 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

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

Who cannot join

  • 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 diagnosis include (but not limited to) cardiovascular disease, diabetes mellitus, cancers (within the past 5 years), etc.
  • Are pregnant, lactating or planning to become pregnant.
  • Are following a medically prescribed diet.
  • Are immunocompromised or have a suspected immunodeficiency.
Show all 9Show fewer
  • Have a known food allergy.
  • Taking part in another diet-related research study that could interfere with the outcomes of this study
  • Consume ≥2 servings per day of legumes.

Trial locations and contacts

1 site in 1 country.

Ireland1 site
  • University College Dublin

    Dublin

Other trials in Ireland

About this study

Official title: Behaviour-focused Personalised Nutrition Intervention to Promote Sustainable and Healthy Diets in University Students: a Feasibility Pilot Study

The aim of this study is to test the efficacy, feasibility, and acceptability of a novel, behaviour-focused personalised nutrition intervention compared to a control personalised nutrition intervention for improving adherence to sustainable and healthy dietary recommendations in university students.

Read the detailed description

Participants will be recruited from the University College Dublin (UCD) PLAN'EAT Living Lab (LL) Citizen Panel which will form a separate registration. The UCD PLAN'EAT LL is a series of studies designed to develop, implement, and evaluate strategies to support University students' transition towards a sustainable healthy diet. The UCD PLAN'EAT LL study will recruit up to n=500 healthy students (aged 18-30 years) attending UCD, Belfield Campus, to join the UCD PLAN'EAT LL Citizen Panel. Upon successful screening and completion of informed consent, participants will be invited to join the UCD PLAN'EAT LL Citizen Panel and complete initial baseline data collection measures (which will be detailed in a separate registration). Following completion of this baseline data collection, participants within the UCD PLAN'EAT LL Citizen Panel will be subsequently invited to participate in this study detailed below.

Participants within the UCD PLAN'EAT LL Citizen Panel will be invited to participate in a 4-week study. This study will aim to recruit n=40 participants within the UCD PLAN'EAT LL Citizen Panel. After successful screening and informed consent, participants will be randomised into two separate groups (n=20 control group; n=20 intervention group) receiving different types of personalised recommendations and strategies using decision tree algorithms to support them to consume a healthier and more sustainable diet. The control group will receive a personalised dietary plan and standardised behavioural support (based on previous personalised nutrition trials and usual care in dietetic practice) to meet their personalised dietary recommendations. The intervention group will receive the same as the control group, with the addition of receiving personalised behavioural support and strategies to help them meet their personalised dietary recommendations.

Baseline: Participants will be asked to complete a questionnaire including questions on demographics, health, dietary behaviours, and lifestyle and a dietary assessment. The dietary assessment will include 3 online 24-hour dietary recalls (2 non-consecutive weekdays and 1 weekend day) (via the web-based dietary recall tool, Foodbook24).

Following completion of baseline measures, participants will be invited to attend a study visit in UCD. Participants will undergo a diet counselling session, where they will receive a personalised feedback report and advice from a nutritionist on how to achieve their goal of eating a more sustainable and healthy diet.

Midpoint: Participants will be contacted by a member of the research team via email or phone message to check their progression and to address any queries.

Endpoint: At the end of the 4-week study, participants will complete a diet-related questionnaire and a second dietary assessment. The dietary assessment will include 3 online 24-hour dietary recalls (2 non-consecutive weekdays and 1 weekend day) (via the web-based dietary recall tool, Foodbook24).

Following completion of endpoint measures, retention rates (number of participants who complete endpoint measures / number of participants enrolled into the study x 100) and data completion rates (number of complete datasets for each outcome measure / number of participants enrolled ×100) will be calculated to assess study feasibility and acceptability.

Process Evaluation:

At the end of this study, all participants will be invited to complete a study evaluation questionnaire including feasibility, acceptability, and engagement measures. In addition, a subsample of participants will also be invited to participate in focus groups or one-to-one interviews to explore topics on study feasibility encompassing, for example, their study experience, study acceptability, factors affecting participation rates (e.g., barriers/ enablers), study engagement, and suggestions for improvement. The focus groups or one-to-one interviews will be guided by the APEASE (Acceptability, Practicality, Effectiveness, Affordability, Side-effects, Equity) criteria.

Being tested
Personalised behavioural sustainable and healthy dietary recommendations, Personalised sustainable and healthy dietary recommendations
Keywords
Sustainable diet, Personalised nutrition, Dietary behaviours, University, Students

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Personalised behavioural sustainable and healthy dietary recommendationsBehavioural

    Personalised dietary plan and standardised behavioural support (based on previous personalised nutrition trials and usual care in dietetic practice), plus the addition of receiving personalised behavioural support and strategies.

  • Personalised sustainable and healthy dietary recommendationsBehavioural

    Personalised dietary plan and standardised behavioural support and strategies (based on previous personalised nutrition trials and usual care in dietetic practice).

Study groups in NCT06631469
Study groupRoleWhat they receive
Personalised behavioural sustainable and healthy dietary recommendationsExperimentalPersonalised dietary plan, standardised behavioural support (based on previous personalised nutrition trials and usual care in dietetic practice), plus personalised behavioural support and strategies aimed at meeting personalised dietary recommendations.
Receives: Behavioral: Personalised behavioural sustainable and healthy dietary recommendations
Personalised sustainable and healthy dietary recommendationsActive comparatorPersonalised dietary plan and standardised behavioural support (based on previous personalised nutrition trials and usual care in dietetic practice) aimed at meeting personalised dietary recommendations.
Receives: Behavioral: Personalised sustainable and healthy dietary recommendations

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Legume intake (grams per day)

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

    Measured: 4 weeks

Secondary outcomes (5)
  1. Plant-based food intake (grams per day)

    Participants will record their diet at baseline (habitual diet) and endpoint (intervention diet) using an online 24-hour recall method. Plant-based food intake will be calculated using dietary intake records (baseline: 3x 24-hour recalls; endpoint: 3x 24-hour recalls). The secondary outcome measure is the change in plant-based food intake (g/ day) as a result of the intervention diet.

    Measured: 4 weeks

  2. Fruit intake (grams per day)

    Participants will record their diet at baseline (habitual diet) and endpoint (intervention diet) using an online 24-hour recall method. Fruit intake will be calculated using dietary intake records (baseline: 3x 24-hour recalls; endpoint: 3x 24-hour recalls). The secondary outcome measure is the change in fruit intake (g/ day) as a result of the intervention diet.

    Measured: 4 weeks

  3. Vegetable intake (grams per day)

    Participants will record their diet at baseline (habitual diet) and endpoint (intervention diet) using an online 24-hour recall method. Vegetable intake will be calculated using dietary intake records (baseline: 3x 24-hour recalls; endpoint: 3x 24-hour recalls). The secondary outcome measure is the change in vegetable intake (g/ day) as a result of the intervention diet.

    Measured: 4 weeks

  4. Meat intake (grams per day)

    Participants will record their diet at baseline (habitual diet) and endpoint (intervention diet) using an online 24-hour recall method. Meat intake will be calculated using dietary intake records (baseline: 3x 24-hour recalls; endpoint: 3x 24-hour recalls). The secondary outcome measure is the change in meat intake (g/ day) as a result of the intervention diet.

    Measured: 4 weeks

  5. High fat, sugar, salt (HFSS) food intake (grams per day)

    Participants will record their diet at baseline (habitual diet) and endpoint (intervention diet) using an online 24-hour recall method. High fat, sugar, and salt food intake will be calculated using dietary intake records (baseline: 3x 24-hour recalls; endpoint: 3x 24-hour recalls). The secondary outcome measure is the change in high fat, sugar, and salt food intake (g/ day) as a result of the intervention diet.

    Measured: 4 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Oct 2024
  2. Study start1 Oct 2024
  3. Primary completion29 Dec 2024
  4. Study completion26 Feb 2025

Resources

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
Other
Allocation
Randomised
Intervention model
Parallel groups
Model description
Parallel randomized controlled trial
Masking
Single blind
Who is masked
Participant
Enrolment
57 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06631469
Sponsor's protocol ID
LS-23-72-Gibney
Other IDs
101061023
Status last verified
Oct 2024
First submitted
4 Oct 2024
Last updated
18 Apr 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: 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. Pseudonymised/ anonymised data will be shared with PLAN'EAT partners where appropriate.

Publications

  • Davies KP, Gibney ER, Leonard UM, Lindberg L, Woodside JV, Kiely ME, Nugent AP, Arranz E, Conway MC, McCarthy SN, O'Sullivan AM. Developing and testing personalised nutrition feedback for more sustainable healthy diets: the MyPlanetDiet randomised controlled trial protocol. Eur J Nutr. 2024 Oct;63(7):2681-2696. doi: 10.1007/s00394-024-03457-0. Epub 2024 Jul 6.

    PubMed 38970665
  • Macready AL, Fallaize R, Butler LT, Ellis JA, Kuznesof S, Frewer LJ, Celis-Morales C, Livingstone KM, Araujo-Soares V, Fischer AR, Stewart-Knox BJ, Mathers JC, Lovegrove JA. Application of Behavior Change Techniques in a Personalized Nutrition Electronic Health Intervention Study: Protocol for the Web-Based Food4Me Randomized Controlled Trial. JMIR Res Protoc. 2018 Apr 9;7(4):e87. doi: 10.2196/resprot.8703.

    PubMed 29631993
  • Writing Group of the Nutrition Care Process/Standardized Language Committee. Nutrition care process and model part I: the 2008 update. J Am Diet Assoc. 2008 Jul;108(7):1113-7. doi: 10.1016/j.jada.2008.04.027. No abstract available.

    PubMed 18589014
  • Rigby RR, Mitchell LJ, Hamilton K, Williams LT. The Use of Behavior Change Theories in Dietetics Practice in Primary Health Care: A Systematic Review of Randomized Controlled Trials. J Acad Nutr Diet. 2020 Jul;120(7):1172-1197. doi: 10.1016/j.jand.2020.03.019. Epub 2020 May 20.

    PubMed 32444328

Questions about this trial

What is this clinical trial studying?

A study testing Personalised behavioural sustainable and healthy dietary recommendations and Personalised sustainable and healthy dietary recommendations in people with Dietary Behaviours and Sustainable Healthy Diet, run by University College Dublin at 1 site in Ireland.

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 2 inclusion and 9 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 18 Apr 2025. 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 Ireland. 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?

Legume intake (grams per day) (time frame: 4 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06631469, which also lists 4 linked publications.

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 18 Apr 2025; AzTrials last refreshed its copy on 28 Oct 2026.

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