School Lunch Salad Bars and Fruit and Vegetable Consumption

Not Applicable

Terminated

• Conditions: Behavior, Eating; Food Selection; Diet Modification; Children, Only; School; Food Habits; Obesity; Adolescent Behavior
• Interventions: Behavioral: New salad bar; Behavioral: Marketing

• Registration Number: NCT03283033
• Lead Sponsor: Arizona State University

Brief Summary

The investigators propose an efficacy study (i.e., do salad bars work under controlled conditions in naturalistic settings) to test whether introducing salad bars in elementary, middle, and high schools that have never had salad bars affects students' FV consumption and waste during lunch. A cluster randomized controlled trial will test new salad bars against controls for 6 wks, with/without an additional 4-wk marketing phase .

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2017-09-12
• Study First Submitted QC: 2017-09-12
• Study First Posted: 2017-09-14
• Study Start: 2017-10-01
• Primary Completion: 2021-09-10
• Study Completion: 2023-06-30
• Status Verified: 2023-11
• Last Update Submitted: 2023-11-21
• Last Update Posted: 2023-11-24

Recruitment & Eligibility

• Status: TERMINATED
• Sex: All
• Target Recruitment: 7491

Inclusion Criteria

• Students enrolled in any grade between grades one and twelve
• Student ID number matches that on a list of randomly selected student ID numbers from the population of student enrolled in school
• Students who elect to receive a hot entree at lunch
• Students who assent to participate

Exclusion Criteria

• Students in detention
• Students in special education
• Students in Kindergarten
• Students not in school for any reason (e.g. illness, vacation)

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Experimental 3	New salad bar	Introduction of a new salad bar and marketing conditions during second semester of school year
Experimental 1	New salad bar	Introduction of a new salad bar during second semester of school year
Experimental 3	Marketing	Introduction of a new salad bar and marketing conditions during second semester of school year
Experimental 2	Marketing	Introduction of marketing conditions during second semester of school year

Primary Outcome Measures

Name	Time	Method
Change in grams of fruit and vegetables consumed	Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization)	The amount (grams) of fresh and canned fruits and vegetables consumed at lunch

Secondary Outcome Measures

Name	Time	Method
Change in percent of fruit and vegetables wasted	Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization)	The percent of fresh and canned fruits and vegetables wasted at lunch
Change in grams of fruit and vegetables selected	Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization)	The amount (grams) of fresh and canned fruits and vegetables selected at lunch

Trial Locations

Locations (1)

Arizona State University; 🇺🇸 Phoenix, Arizona, United States