This is a pilot randomized controlled trial to assess the effects of providing produce vouchers during behavioral weight loss treatment in 40 adults with obesity and food insecurity. Participants will be randomized to ProduceRx (12 weekly sessions of in-person, behavioral weight loss counseling (BWL) + produce prescriptions) or a waitlist control (WLC).
The proposed investigation is a single-site, pilot RCT to assess the effect of BWL and produce vouchers (ProduceRx) on diet quality, weight loss and cardiovascular risk factors among adult participants with food insecurity and obesity. Adults (N=40) will be randomized to a 12-week program that provides weekly, 30-minute BWL sessions + produce vouchers (n=20) or WLC (n=20). Outcomes will be assessed at baseline and at 12 weeks and include questionnaires, and measurements of weight, height, and cardiometabolic risk factors (blood pressure, waist circumference, and pulse). Participants will also be asked to complete two 24-hour dietary recalls.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
31
Participants will receive weekly 30-minute, individual, in-person lifestyle counseling delivered by trained interventionists (e.g., registered dietitians) that consists of behavioral, dietary, and physical activity counseling. ProduceRx vouchers will be in the form of Food Bucks and will be provided at each session.
University of Pennsylvania
Philadelphia, Pennsylvania, United States
Dietary quality
Change from baseline to 12 weeks in dietary quality from 24-hour dietary recalls summarized into Healthy Eating Index (HEI) Scores and caloric intake. Scores range from 0 to 100 with higher scores indicating better diet quality.
Time frame: Baseline, 12 weeks
Percent initial weight loss
Change from baseline to 12 weeks in percent initial weight loss
Time frame: Baseline, 12 weeks
Systolic blood pressure
Change from baseline to 12 weeks in systolic blood pressure
Time frame: Baseline, 12 weeks
Diastolic blood pressure
Change from baseline to 12 weeks in diastolic blood pressure
Time frame: Baseline, 12 weeks
Waist circumference
Change from baseline to 12 weeks in waist circumference
Time frame: Baseline, 12 weeks
Pulse
Change from baseline to 12 weeks in pulse rate
Time frame: Baseline, 12 weeks
Health-related quality of life
Change from baseline to 12 weeks in general health-related quality of life (Short-Form-36). Scores range from 0 to 100 with higher scores indicating better quality of life.
Time frame: Baseline, 12 weeks
Weight-related quality of life
Change from baseline to 12 weeks in weight-related QOL (Impact of Weight on Quality of Life-Lite). Scores range from 0 to 100 with higher scores indicating better quality of life.
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Time frame: Baseline, 12 weeks
Food security
Change from baseline to 12 weeks in the USDA Food Security Survey. Scores range from 0-10 with higher scores indicating lower food security.
Time frame: Baseline, 12 weeks
Depressive symptoms
Change from baseline to 12 weeks in Patient Health Questionnaire-8 Scores. Scores range from 0 to 24 with higher scores indicating more depressive symptoms.
Time frame: Baseline, 12 weeks
Food addiction
Change from baseline to 12 weeks in Yale Food Addiction Scores. Symptom scores range from 0 to 11 with higher scores indicating more symptoms.
Time frame: Baseline, 12 weeks
Eating behaviors
Change from baseline to 12 weeks in Eating Behaviors. Higher scores indicate greater agreement.
Time frame: Baseline, 12 weeks
Self-regulation of eating
Change from baseline to 12 weeks in self-regulation of eating as measured by the Regulation of Eating Behavior Scale. Scores range from 24 to 168 with higher scores indicating more self-regulation.
Time frame: Baseline, 12 weeks
Self-regulation of exercise
Change from baseline to 12 weeks in Behavioral Regulation in Exercise Questionnaire. Scores range from 0 to 76 with higher scores indicating more self-regulation.
Time frame: Baseline, 12 weeks
Self-efficacy
Change from baseline to 12 weeks in scores on the Weight Efficacy Lifestyle Questionnaire. Total scores range from 0 to 180. Higher scores represent greater eating self-efficacy.
Time frame: Baseline, 12 weeks
Physical activity
Change from baseline to 12 weeks in scores on the International Physical Activity Questionnaire. Higher scores indicate more physical activity.
Time frame: Baseline, 12 weeks
Perceived Stress Scale
Change from baseline to 12 weeks in scores on the Perceived Stress Scale. Scores range from 0-56 with higher scores indicating more stress.
Time frame: Baseline, 12 weeks