Vegetables for All Project in Uganda

Not Applicable

Active, not recruiting

• Conditions: Vegetable Consumption
• Interventions: Behavioral: Food system and demand generation

• Registration Number: NCT06602752
• Lead Sponsor: RTI International

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 midline and endline). Focus group discussions (FGDs) will be conducted with vegetable vendors (16 FGDs at midline and endline) and household members (16 FGDs at midline and 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.

Study Timeline

• Study First Submitted: 2024-09-17
• Study First Submitted QC: 2024-09-17
• Study First Posted: 2024-09-19
• Study Start: 2024-11-15
• Status Verified: 2025-04
• Last Update Submitted: 2025-04-07
• Last Update Posted: 2025-04-09
• Primary Completion: 2026-12-15
• Study Completion: 2026-12-15

Recruitment & Eligibility

• Status: ACTIVE_NOT_RECRUITING
• Sex: All
• Target Recruitment: 4616

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.

Exclusion Criteria:

• For endline: participants will be excluded if they participated in a midline FGD

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Intervention	Food system and demand generation	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.

Primary Outcome Measures

Name	Time	Method
Grams of Vegetables Consumed	Baseline (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

Trial Locations

Locations (1)

Makerere University School of Public Health; 🇺🇬 Kampala, Uganda