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A Boost of Health: Effectiveness of a Personalized Communication Intervention to Increase Daily Fruit and Vegetable Intake
Sponsor: Marco D'Addario
Summary
This study aims to evaluate the efficacy of a healthy diet promotion intervention focused on increasing fruit and vegetable consumption. The intervention is delivered via mobile application in a sample drawn from the healthy adult population.
Official title: A Boost of Health: Effectiveness of a Personalized Communication Intervention Aimed at Increasing Daily Fruit and Vegetable Portions - A Study Within the PNRR 10 ON Foods Partnership
Key Details
Gender
All
Age Range
18 Years - 55 Years
Study Type
INTERVENTIONAL
Enrollment
403
Start Date
2024-12-03
Completion Date
2026-01-16
Last Updated
2026-05-20
Healthy Volunteers
Yes
Conditions
Interventions
Interactive communication
Participants received two daily notifications. Each notification included a question about a variable from the HAPA model, and participants responded on a 5-point Likert scale. Those who scored low (1-3) received a motivational message tailored to their response. In contrast, participants who scored high (4-5) received rewarding messages. These notifications gave participants feedback on their standings within the HAPA.
Non-interactive Communication
Participants received two daily educational notifications about HAPA variables, but they did not interact with the app. The notifications for both the HAPA-I and HAPA-NI groups were identical in structure, word count, and graphic format. The only difference was the level of content customization: it was generic for the HAPA-NI group and tailored to participants' responses for the HAPA-I group.
Self-monitoring
Participants received a daily reminder to log the portions of fruit and vegetables in a dedicated self-monitoring section of the app.
Locations (1)
Adorni Roberta
Milan, Milano, Italy