Related Experiment Video
Updated: Jan 9, 2026

04:54
Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
Published on: March 19, 2021
5.1K
Cluster-Randomized Controlled Trial of a Mobile Produce Market designed to Address Diet and Food Insecurity in
Lucia A Leone1, Christina Kasprzak1, Anne Lally1
1University at Buffalo, State University of New York.
Research Square
|December 11, 2025
Summary
The Veggie Van (VV) intervention improved food security and healthy eating behaviors in low-income communities. This mobile market study demonstrated positive impacts on diet-related behaviors and food access.
Area of Science:
- Public Health
- Nutrition Science
- Community Interventions
Background:
- The Veggie Van (VV) is a mobile market intervention designed to increase fruit and vegetable (F&V) consumption.
- Previous efficacy studies showed VV increased F&V intake in lower-income populations.
- This study evaluated the broader impact of VV delivered by community partners.
Purpose of the Study:
- To assess the effect of the Veggie Van intervention on food security.
- To determine the impact of the VV intervention on diet-related behaviors.
- To understand the role of community partners in delivering the intervention.
Main Methods:
- A cluster-randomized trial involving nine organizations across four US states.
- 33 community sites serving lower-income individuals with limited healthy food access were included.
- 699 participants were enrolled in 17 intervention sites and 16 control sites over one year.
Main Results:
- The Veggie Van intervention demonstrated positive impacts on food security and diet-related behaviors.
- Community partnerships facilitated the delivery of the mobile market intervention.
- The study provides evidence for the effectiveness of community-based mobile markets.
Conclusions:
- The Veggie Van intervention is an effective strategy for improving food security and diet-related behaviors in underserved communities.
- Multi-organizational partnerships can successfully implement mobile produce markets.
- Further research should explore long-term impacts and scalability.
More Related Videos
Related Concept Videos
Community Based Intervention
258
Community-based interventions in mental health represent a paradigm shift from institution-centered care to treatments embedded within the fabric of local communities. By prioritizing inclusion and leveraging existing societal structures, this approach fosters a supportive environment conducive to addressing mental health challenges while promoting individual dignity and agency.
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
258
Study Designs in Epidemiology
848
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
848
Randomized Experiments
8.8K
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Simple randomization
Simple...
8.8K
Bioavailability Study Design: Healthy Subjects Versus Patients
133
Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
133
Clinical Trials
10.1K
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
There are four phases in a clinical trial. A phase one...
10.1K
Clinical Trials: Overview
4.5K
Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
4.5K

