Study to Evaluate the 'eNutri' Online Personalised Nutrition App in the United Kingdom (UK)

Study Overview
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Brief Summary
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The proof-of-principle EatWellEUR pilot study will investigate whether online personalised dietary advice encourages greater dietary behaviour change after 12 weeks compared with general population-based diet advice. Dietary change will be quantified from an 11-item diet quality score (DQS) suitable for Northern European populations that is calculated from the results of the eNutri food frequency questionnaire (FFQ) at baseline and week 12.

Detailed Description
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The proof-of-principle EatWellEUR pilot study will investigate whether online personalised dietary advice encourages greater dietary behaviour change after 12 weeks compared with general population-based diet advice. Both groups will receive two prompts to remind them of their diet advice at weeks 4 and 8. Dietary change will be quantified from an 11-item diet quality score (DQS) suitable for Northern European populations that is calculated from the results of the eNutri food frequency questionnaire (FFQ) at baseline and week 12. 98 participants will be recruited per study arm and will be randomly allocated to an intervention arm using a minimisation technique integrated with the eNutri app.

Official Title
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Proof-of-principle Pilot Study to Investigate Whether Online Personalised Dietary Advice Given by the eNutri Diet App Encourages Greater Dietary Behaviour Change Than General Advice in UK Adults After 12 Weeks

Conditions
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Dietary Modification, Dietary Habits

Intervention / Treatment
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* Behavioral: Non-personalised diet advice delivered via the eNutri app (control)
* Behavioral: Personalised diet advice delivered via the eNutri app (intervention)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Living in the UK Can understand written English Exclusion Criteria: Food allergies or food intolerances (diagnosed or self-diagnosed) Receiving professional nutritional advice from a dietitian, nutritionist or medical professional Following a specialised diet (e.g. vegan, calorie-controlled/weight-loss diet) Athletes or those following a or sports nutrition regimen Pregnant, lactating or planning a pregnancy within the next 3 months Diagnosed medical conditions that require specific dietary guidance (e.g. diabetes, Crohn's disease or eating disorders), those who are currently undergoing rigorous medical treatment (e.g. chemotherapy for cancer) or conditions that affect memory (e.g. dementia) Medications that impact on diet (e.g. weight-loss medication) or involve dietary restrictions Those who eat less than 2 meals per day Excessive use of herbal or dietary supplements (e.g. 3 or more per day) Taking part in another nutrition study

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Non-personalised general diet advice<br>Control group to receive non-personalised dietary advice based on general public health dietary recommendations for Northern Europe. Advice will be delivered to the participant via the eNutri web application. | Behavioral: Non-personalised diet advice delivered via the eNutri app (control)<br>* Non-personalised dietary advice to improve food choices based on standard population guidelines delivered by the eNutri app and irrespective of the dietary intakes from the food frequency questionnaire (control group).<br>|
| Experimental: Personalised diet advice<br>Intervention group to receive personalised dietary advice generated by the eNutri app from their actual dietary intakes and tailored according to their body mass index and food preferences. Advice will be delivered to the participant via the eNutri app web application and will be generated based on their adherence to an 11-item diet quality score suitable for Northern European populations. | Behavioral: Personalised diet advice delivered via the eNutri app (intervention)<br>* Personalised dietary advice to improve food choices based on adherence to an 11-item diet quality score, which is determined by the eNutri app in response to the dietary intakes from the food frequency questionnaire (intervention group).<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| eNutri diet quality score (DQS) | Dietary intake at baseline and week 12 will be assessed via the eNutri food frequency questionnaire (FFQ) from which an 11-item eNutri DQS will be calculated. The eNutri DQS was developed for Northern Europe and quantifies diet quality (i.e. the healthiness of a diet). It is composed of 11 food and nutrient components (contributing 10 points each) that are summed to give an overall score (between 0-110 points), where higher scores reflect the healthiest diets based on adherence to dietary recommendations. | Baseline & week 12 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Body mass index (BMI) | Self reported measurements of weight and height will be used to determine BMI. | Baseline & week 12 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Personalised nutrition