NCT05776303

Brief Summary

The goal of this clinical trial is to improve the health of workers at their worksite by providing subsidized healthy meals supported by nutrition education and behavioral nudges using mobile health and Bluetooth technology. The aim of this study is to: Randomize 240 individuals in 8-10 worksites to either Good Bowls alone or Good Bowls + Phone App nudges. Using a crossover design, the primary outcome is the score on a validated Mediterranean diet screener, with secondary outcomes including weight, blood pressure, carotenoid levels, and food security. Participants: Workers at blue and white-collar worksites. Procedures: Workers will be recruited from 8-10 worksites who will be initially randomized within each site to Good Bowls alone or Good Bowls + Phone App nudges. Initial assignment will be followed for four months, after which the groups will crossover for the subsequent four months. The investigators will collect survey data as well as some physiologic measures including skin scanning (non-invasive), weight, and blood pressure. Effects between groups will be determined.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
240

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Mar 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 8, 2023

Completed
7 days until next milestone

Study Start

First participant enrolled

March 15, 2023

Completed
5 days until next milestone

First Posted

Study publicly available on registry

March 20, 2023

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 21, 2025

Completed
10 days until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2025

Completed
Last Updated

July 18, 2025

Status Verified

July 1, 2025

Enrollment Period

2.4 years

First QC Date

March 8, 2023

Last Update Submit

July 15, 2025

Conditions

Keywords

Med-South DietWorksite InterventionSubsidized FoodApp-based Messaging

Outcome Measures

Primary Outcomes (3)

  • Change in nutrition as measured by the Mediterranean Diet 14-Item Screener Score

    A slightly adapted version of the Mediterranean Diet 14-item validated screener will be used for nutritional assessment. The score ranges from 0-14, with a higher score indicating higher adherence to the Mediterranean Diet.

    Baseline, 4 months

  • Change in nutrition as measured by the Mediterranean Diet 14-Item Screener Score

    A slightly adapted version of the Mediterranean Diet 14-item validated screener will be used for nutritional assessment. The score ranges from 0-14, with a higher score indicating higher adherence to the Mediterranean Diet.

    4 months, 8 months

  • Change in nutrition as measured by the Mediterranean Diet 14-Item Screener Score

    A slightly adapted version of the Mediterranean Diet 14-item validated screener will be used for nutritional assessment. The score ranges from 0-14, with a higher score indicating higher adherence to the Mediterranean Diet.

    Baseline, 8 months

Secondary Outcomes (4)

  • Change in weight

    Up to 8 months

  • Change in blood pressure

    Up to 8 months

  • Change in skin carotenoids

    Up to 8 months

  • Change in food security

    Up to 8 months

Study Arms (2)

Good Bowls + App Nudges, followed by Good Bowls alone

EXPERIMENTAL

Participants in this arm will be exposed to Good Bowls + App Nudges throughout the first four months followed by four months of Good Bowls alone.

Behavioral: Good BowlsBehavioral: Good Bowls + App Nudges

Good Bowls, followed by Good Bowls + App Nudges

ACTIVE COMPARATOR

Participants in this arm will be exposed to Good Bowls alone throughout the first four months followed by four months of Good Bowls + App Nudges.

Behavioral: Good BowlsBehavioral: Good Bowls + App Nudges

Interventions

Good BowlsBEHAVIORAL

Healthy, frozen subsidized meals are made conveniently available on worksites.

Good Bowls + App Nudges, followed by Good Bowls aloneGood Bowls, followed by Good Bowls + App Nudges

Healthy, frozen subsidized meals are made conveniently available on worksites. Additionally, Bluetooth enabled beacons will be set up at each worksite that will send location specific messages to an individual's Smartphone via an App. These messages will include nutritional information, tips, and behavioral nudges.

Good Bowls + App Nudges, followed by Good Bowls aloneGood Bowls, followed by Good Bowls + App Nudges

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Employed at participating worksite
  • No plans to move from the area for at least 1 year
  • Free living to the extent that participant has control over dietary intake
  • Willing and able to provide written informed consent and participate in all study activities

You may not qualify if:

  • Severe food allergies
  • Advanced kidney disease (estimated creatinine clearance \< 30 ml/min)
  • Known psychosis or major psychiatric illness that prevents participation with study activities
  • Cognitive impairment, frailty, or other disability such that individual cannot fully participate in study activities

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, 27599, United States

Location

MeSH Terms

Conditions

Feeding Behavior

Condition Hierarchy (Ancestors)

Behavior, AnimalBehavior

Study Officials

  • Kurt Ribisl, PhD

    University of North Carolina, Chapel Hill

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Randomize 240 individuals in 8-10 worksites to either Good Bowls alone or Good Bowls + Phone App nudges at a 1:1 allocation ratio. Initial assignment will be followed for four months, after which the groups will crossover for the subsequent four months.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 8, 2023

First Posted

March 20, 2023

Study Start

March 15, 2023

Primary Completion

July 21, 2025

Study Completion

July 31, 2025

Last Updated

July 18, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will share

Deidentified individual data that supports the results will be shared beginning 9 to 36 months following publication provided the investigator who proposes to use the data has approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and executes a data use/sharing agreement with the University ofNorth Carolina (UNC) and Equiti Foods, LLC.

Shared Documents
STUDY PROTOCOL, SAP, ANALYTIC CODE
Time Frame
9 to 36 months following publication
Access Criteria
Investigator with IRB, IEC, or REB approval and an executed data use agreement with UNC and Equiti Foods, LLC

Locations