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).
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE
Enrollment
242
Participants will receive varying benefit amounts to purchase fruits and vegetables.
University of California, San Francisco
San Francisco, California, United States
Benefit redemption
Dollar amount of benefits redeemed (numerator) over total dollar amount of benefits distributed (denominator)
Time frame: Monthly for 6 months
Fruit and vegetable consumption
Measured by NCI Dietary Screener Questionnaire (DSQ) and reported in cup-equivalents, a higher score indicates greater fruit and vegetable intake (better outcome)
Time frame: 0, 3, and 6 months
Food security status
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
Time frame: 0, 3, and 6 months
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