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OpenTrials
Completed

NCT Number: NCT05978843

Comparison of Produce Prescription Benefit Dosage

The goal of this study is to determine the relationship between produce prescription program 'dose' on benefit redemption, food insecurity, and fruit and vegetable consumption. Participants will be randomized to receive one of three fruit and vegetable benefit dose amounts for 6 months ($40, $80, or $110/month).

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Key information

Conditions

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of California, San Francisco

San Francisco, California, 94110, United States

About this study

Emerging evidence from the growing body of research around 'Food is Medicine' interventions shows promise that produce prescriptions (PPR) improve health by enabling purchases of healthy foods, reducing food insecurity, and improving diet quality. However, PPR amounts are often set seemingly arbitrarily, without clear connection to their intended purpose. In this study, investigators will conduct a three-armed randomized trial of 240 participants in Stockton, CA to test the impact of three 'doses' of a fruit and vegetable benefit on benefit redemption, food security, and fruit and vegetable intake. The goal of this study is to determine the relationship between PPR program 'dose' and the key intermediate outcomes of benefit redemption (primary outcome), food insecurity, and consumption of incentivized foods (secondary outcomes). Investigators will also seek to identify any 'ceiling effect' above which further increases in benefit value do not lead to further benefit redemption. This will be highly informative for subsequent PPR research. Investigators will leverage the existing infrastructure of the Vouchers 4 Veggies - EatSF produce prescription program to ensure feasibility.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Individual enrolled in a First Five Program at El Concilio California, located in Stockton, CA
  • Age 18+
  • English or Spanish speaking
  • Literacy sufficient to complete a written survey
  • Technologic capacity to complete an online survey

Exclusion criteria

  • non English or Spanish speaking
  • cognitive impairment severe enough to interfere with understanding of the survey or consent form, whether due to cognitive delay, substance abuse, dementia, mental illness, or other etiologies
  • Not enrolled in a First Five Program at El Concilio California
  • Actively receiving another V4V/EatSF card

Treatment and study plan

Monetary benefit to purchase fruits and vegetables

Behavioral

Participants will receive varying benefit amounts to purchase fruits and vegetables.

Primary outcomes

  1. Benefit redemption

    Time frame: Monthly for 6 months

    Dollar amount of benefits redeemed (numerator) over total dollar amount of benefits distributed (denominator)

Secondary outcomes

  1. Fruit and vegetable consumption

    Time frame: 0, 3, and 6 months

    Measured by NCI Dietary Screener Questionnaire (DSQ) and reported in cup-equivalents, a higher score indicates greater fruit and vegetable intake (better outcome)

  2. Food security status

    Time frame: 0, 3, and 6 months

    Measured by USDA 18-item food security module. A higher score indicates more severe food insecurity (worse outcome); Scores converted to Rasch measurement scale, with a higher score indicates more severe food insecurity

Sponsors and collaborators

Lead sponsor

University of California, San Francisco

Other

Collaborators

  • American Heart Association

Registry information

Official study title

Comparison of Produce Prescription Benefit Dosage on Redemption

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
Aug 7, 2023
Registry last updated
Jan 30, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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