Using an AI Mobile Application to Promote Healthy Eating

Part of paid clinical trials in Davis, California.

Sponsor
University of California, Davis
Study ID
NCT07108452
Status
Not Yet Recruiting

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Conditions

  • Healthy

Eligibility Criteria

Sex
ALL
Age
18 Years - 24 Years
Healthy Volunteers
Accepted

Interventions

  • A mobile application that uses AI to deliver behavioral nudges that encourage healthy food choices. — OTHER
    As a mobile application for assessing dietary intake, the app provides a daily report of food intake- a core function that both the gamified and limited app versions have. The gamified version has the added functionality of delivering behavioral nudges that encourage healthy food selections.
  • Limited app version for dietary assessment only — OTHER
    This app version provides a daily report of energy and nutrient intake- available to those randomized to the control group

Study Details

The goal of this feasibility study is to determine the adherence, acceptability, and usability of the behavioral intervention of a mobile AI application and its effects on food choices and diet quality. A secondary goal is to assess whether the app's accuracy or feasibility differs by food security status. Study participants are UC Davis students aged 18-24 years. The main question it aims to answer is: \- Does the gamified app version that delivers behavioral nudges have a higher adherence and acceptability rate, and does this translate to better dietary behaviors? Participants will use either the intervention app (dietary assessment + gamification) or the control app (non-gamified, dietary assessment only) for six weeks to record all their food intake. Diet quality will be assessed at baseline and endline, and a Likert scale acceptability questionnaire will be administered at endline.

Key Dates

Start date
Jun 30, 2026
Status verified
Apr 2026
Primary completion
Jun 30, 2026
Completion
Dec 31, 2026

Study Design

Enrollment
114 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER

Arms

  • Experimental: Intervention group- Gamified app version; dietary assessment + gamification
    Participants will be randomly assigned at enrollment to the intervention group, which will receive a gamified app that delivers behavioral nudges and provides a daily report of caloric and nutrient intake.
  • Active Comparator: Control group- Limited app version, dietary assessment only
    Participants will be randomized at enrollment to the control group, which will receive a "limited" app version that only provides a daily report of caloric and nutrient intake, without delivering behavioral nudges.

Primary Outcome Measure

App acceptability by version assigned to participants [ Time Frame: Measured at endline: at the end of the 6 week period ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
University of California, Davis - Department of NutritionDavisCalifornia95616
Christabel A Domfe, MS
[email protected]
530-752-4630

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By research site
University of California, Davis - Department of Nutrition· Davis, CA

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