A Comparative Intervention Study on Strategies for Fruit Distribution and Awareness Campaigns in Schools

NCT07385820 | Recruiting

• 2 other identifiers: Dnr 2024-07536-01101104618 - PREVENT
• Study Type: interventional
• Target: 300
• Locations: 1 country
• Sites: 2

Brief Summary

This implementation study evaluates two strategies to increase fruit consumption among Swedish students. (1) installing fruit stands in schools and (2) combining fruit stands with a health-awareness campaign. The intervention is implemented in a set of participating schools, each following one of the predefined strategies. Students are asked to use a research app to photograph their meals and snacks during three data-collection periods before, during, and after the intervention. The study collects information on fruit intake, eating patterns, and the number of fruits taken from the stands to assess effectiveness and reduce food waste. The aim is to identify which strategy better supports healthy eating habits in school environments.

Conditions

Dietary Behaviors; Fruit Consumption; Dietary Habits; Healthy Eating; Health Promotion; Schools

Keywords

Healthy eating; Dietary behavior; Fruit consumption; School environment; School; Health promotion; Prevention; Behavior change; Implementation study; School-based intervention; Public health; Adolescent health

Outcome Measures

Primary Outcomes (1)

• Change in fruit consumption

  Measured across baseline, early-intervention, and follow-up to evaluate whether fruit consumption differs between schools receiving fruit stands alone and those receiving fruit stands plus an awareness campaign.

  From enrollment until the end of Post-measurements (10 weeks after enrollment)

Study Arms (2)

Fruit stands only

EXPERIMENTAL

Schools assigned to this arm receive fruit stands that provide free fruit during the school day. No awareness or educational campaign is implemented. Students report all their meals including fruits and snacks using the research mobile app before, during, and after the intervention

Behavioral: Fruit Stand Availability

Fruit stands + awareness campaign

EXPERIMENTAL

Schools assigned to this arm receive fruit stands identical to the fruit-only arm, plus a school-based awareness campaign designed to promote healthy eating and encourage fruit consumption. Students report all their meals including fruits and snacks using the research mobile app before, during, and after the intervention.

Behavioral: Fruit Stand Availability; Behavioral: Awareness Campaign

Interventions

Fruit Stand Availability BEHAVIORAL

Free fruit is provided to students through fruit stands placed in central school areas. Two fruit varieties are offered, and fruit uptake is monitored using digital scales integrated into the stands. Students photograph school-provided fruit before eating it and annotate it as "school fruit" in the app, while also documenting all meals and snacks as part of the study protocol.

Fruit stands + awareness campaign; Fruit stands only

Awareness Campaign BEHAVIORAL

A school-based awareness campaign is delivered to promote healthy eating and encourage fruit consumption. Activities may include posters, messaging, or informational content. The campaign is implemented alongside the fruit stands to enhance student engagement with the intervention.

Fruit stands + awareness campaign

Eligibility Criteria

• Age: 7 Years - 19 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Students enrolled in a Swedish school (elementary, middle, or high school)
• Ages 7-19 years
• Able to use a mobile phone to document meals and snacks
• Provided informed consent (with parental consent required for participants under 15 years old)

You may not qualify if:

• \- Presence of any clinically significant disease or condition that, in the opinion of the research team, may interfere with participation or influence study outcomes

Sponsors & Collaborators

• Karolinska Institutet: lead

Study Sites (2)

Internationella Engelska Gymnasiet Södermalm

Stockholm, 118 58, Sweden

RECRUITING

Blackebergs gymnasium

Stockholm, 168 48, Sweden

RECRUITING

MeSH Terms

Conditions

Feeding Behavior

Condition Hierarchy (Ancestors)

Behavior, Animal; Behavior

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Senior Researcher, Research Team Leader

Study Record Dates

• First Submitted: January 27, 2026
• First Posted: February 4, 2026
• Study Start: January 12, 2026
• Primary Completion (Estimated): December 31, 2026
• Study Completion (Estimated): December 31, 2026
• Last Updated: February 6, 2026

Record last verified: 2026-02

Data Sharing

• IPD Sharing: Will share

Locations

SE (2)