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Vegetables for All Project in Uganda

Impact Evaluation of the Global Alliance for Improved Nutrition (GAIN) Vegetables for All Program in Uganda

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06602752
Enrollment
4616
Registered
2024-09-19
Start date
2024-11-15
Completion date
2026-12-15
Last updated
2026-04-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vegetable Consumption

Keywords

diet, vegetables, market intervention, social and behavior change communication intervention, bottom of pyramid, children, Uganda

Brief summary

This study is an evaluation of the Global Alliance for Improved Nutrition (GAIN)'s Vegetables for All Project in Uganda. The aim of this program is to improve access to safe and fresh vegetables in FitFood Zones (FFZs) and generate demand for vegetables through a media campaign and FFZ branding. RTI and local partners will conduct impact and process evaluations of GAIN's program. The evaluation will include a mix of quantitative and qualitative methods and will be guided by the RE-AIM (reach, effectiveness, adoption, implementation, and maintenance) evaluation framework.

Detailed description

Background: In Uganda, the goal of GAIN's 'Vegetables for All' project is to contribute to improving the dietary diversity of Ugandans through increased consumption of safe vegetables and greater use of vegetables in Ugandan cuisine, increasing the percentage of bottom-of-the-pyramid (BoP) consumers with more adequate diets. The 'Vegetables for All' project has components focused on generating demand for safe and fresh vegetables, improving access to safe and fresh vegetables, and improving the enabling environment to support the policy and regulatory environment within which vegetable value chains function. The project resonates with Uganda's programs and interventions for preventing diet-related non-communicable diseases (DR-NCDs). Further, few evaluations of integrated nutrition and food systems programs have been conducted globally. Therefore, an evaluation of such a program would generate insights that could inform policies and program initiatives for preventing DR-NCDs in Uganda and in other contexts. Objective: The overall objectives of the evaluation are: 1) To assess the change in the quantity (grams) of vegetables consumed in the last 24 hours before and after GAIN's Vegetables for All Project by women and children 3-9 years in BoP households in the intervention versus control areas in the study districts; 2) To assess the effect of the Vegetables for All project on secondary outcomes in BoP households in intervention versus control areas in study districts; 3) to assess the effect of the Vegetables for All project on knowledge, attitudes, and intentions related to vegetable consumption in BoP households in the intervention versus control areas in study districts; and 4) To conduct a program impact pathway analysis that will provide information that GAIN can use to adapt their program at midline and that will help support the findings of the impact evaluation at endline. Methods: This evaluation will use a mixed-methods quasi-experimental design in which 136 FFZs are assigned to intervention or control groups across four districts. The impacts will be assessed through cross-sectional population-based surveys of households with women 18-49 years who have a child 3-9 years in the selected FFZs at baseline and endline (N=1,360 at each time point). Vegetable vendor surveys will be conducted in all 136 sampled FFZs at baseline and endline (N=408 at each time point). Qualitative data will be collected at midline and endline. In-depth interviews (IDIs) will be conducted with vegetable value chain actors and other stakeholders (N=16 at endline) and household members (16 FGDs at endline). The analysis will be performed using difference-in-difference estimation (surveys) and thematic content analysis methods (qualitative). A PIP analysis will be conducted at endline using a combination of qualitative and quantitative data to help understand the pathways through which the program achieved its impact.

Interventions

The Vegetables for All project will create FFZs in low-income urban and peri-urban areas. FFZs are the last mile/point of purchase for delivering a variety of fresh, safe, and accessible vegetables to BoP households. The program will link vendors and farmers through market facilitators, support the uptake of digital solutions for vendors to access vegetables, and support district governments to improve market infrastructure. To encourage BoP parents of children 3-9 years to buy and consume more vegetables, the program will include a demand generation component.

Sponsors

RTI International
Lead SponsorOTHER
Makerere University
CollaboratorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Intervention model description

Data will be collected through household surveys, vegetable vendor surveys, in-depth interviews, and focus group discussions. The study team has selected a subset of intervention FFZs for the evaluation and identified an equal number of geographic areas of similar size and level of urbanicity to serve as controls.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Different populations will be targeted for different data collection methods. Eligibility criteria are detailed below for each data collection method. Household Surveys Inclusion Criteria: * Reside in the FFZs selected; * Be a woman between 18-49 years old; * Have a child 3-9 years old; * The household earns $250 per month; * Be able to speak one of the main local languages (Luganda and/or Lusoga); * Provide informed consent to participate in the study. Vegetable Vendor Surveys Inclusion Criteria: * Be a vegetable vendor in a FFZ in the districts selected for the evaluation; * Be in business for at least 6 months * Be over 18 years old; * Be able to speak one of the main local languages (Luganda and/or Lusoga); * Provide informed consent to participate in the study. In-depth interviews with value chain actors: Inclusion criteria: * Be a vegetable supplier to vegetable vendors as part of the FFZ, involved in demand generation activities, or involved in food safety compliance; * Be over 18 years old; * Be able to speak one of the main local languages (Luganda and/or Lusoga); * Provide informed consent to participate in the study. FGDs with vegetable vendors: Inclusion criteria: * Work as a vegetable vendor * Have been a vegetable vendor for at least 6 months * Be over 18 years old; * Be able to speak one of the main local languages (Luganda and/or Lusoga); * Provide informed consent to participate in the study.

Exclusion criteria

• For endline: participants will be excluded if they participated in the midline focus group discussion FGDs with households: FGD participants will be selected from lists of participants in the FFZ and household surveys and will be consented again for the FGDs if they meet the following criteria: Inclusion criteria: * Be a woman living in a BoP household in a FFZ selected for the evaluation; * Have ever visited a vegetable vendors' place of business; * Participated in the baseline survey; * Be over 18 years old; * Be able to speak one of the main local languages (Luganda and/or Lusoga); * Provide informed consent to participate in the study.

Design outcomes

Primary

MeasureTime frameDescription
Grams of Vegetables ConsumedBaseline (October 2024), Endline (October 2026) (2 years)Change in the mean grams of vegetables consumed during the last 24 hours by women and children 3-9 years old in BoP households in Fit Food Zones

Countries

Uganda

Contacts

PRINCIPAL_INVESTIGATORSimon Kasasa

Makerere University

PRINCIPAL_INVESTIGATORValerie Flax

RTI International

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 24, 2026