# Implementation matters: program impact pathway analysis of four sectoral nutrition-sensitive interventions in Anambra and Kebbi states, Nigeria

## TL;DR

This study examines how well four nutrition programs in Nigeria work by looking at how they are implemented and what factors help or hinder their success.

## Contribution

The study identifies cross-sector factors affecting program implementation and proposes solutions to improve nutrition-sensitive interventions.

## Key findings

- Programs with strong community engagement and rapid course correction achieved better results.
- Barriers like insufficient infrastructure and staffing limited program effectiveness.
- Adaptive management and community-led planning can improve program reach and quality.

## Abstract

Undernutrition in early childhood can be reduced when large-scale, nutrition-sensitive programs are delivered with adequate dose, reach, fidelity, and recruitment.

This study (i) investigates the implementation and impact pathways of four nutrition-sensitive programs in Kebbi and Anambra states, Nigeria: Early Childhood Development Education (ECCDE), Environmental Sanitation, Skills Acquisition, and Agricultural Transformation Support Program (ATASP-1) and (ii) identifies cross-sector factors that enable or hinder effective dose, reach, fidelity, and recruitment.

The study employs qualitative methods such as document reviews, in-depth interviews, and site observations to explore the complexity of program delivery and the contextual factors that influence its outcomes.

All four programs showed dose–reach–fidelity–recruitment gaps in varying degrees: irregular training and equipment delayed dose; rural and low-income communities were least reached; weak quality control cut fidelity; and recruitment seldom penetrated remote areas. Barriers across sectors included insufficient infrastructure, shortages of trained personnel, and bureaucratic funding delays. Programs with robust community engagement, active multi-stakeholder collaboration, timely resource flow, and short ‘reviewandadapt’ cycles (ATASP1 in both states; ECCDE in Anambra) overcame many shortfalls, whereas those lacking these features underperformed (Environmental Sanitation in Anambra; Skills Acquisition in Kebbi).

Closing Nigeria’s nutrition-sensitive implementation gap demands a dual response: fix tangible barriers – staffing, infrastructure, and procurement – and institutionalize community-led planning and adaptive management to keep dose–reach–fidelity–recruitment on track. Doing so will improve program reach and quality and accelerate progress against child undernutrition.

Main findings: Gaps in dose, reach, fidelity, and recruitment were largest where resources and staff were limited, but programs that paired strong community engagement with rapid course correction achieved measurably better results.Added knowledge: By mapping these barriers and facilitators onto the dose–reach–fidelity–recruitment framework across four sectoral programs, the study pinpoints clear cross-sector entry points for nutrition-sensitive delivery – staffing, outreach design, and feedback loops.Global health impact for policy action: Improving frontline resources, institutionalizing community participation, and embedding short adaptive review cycles can make nutrition-sensitive programs more effective and equitable.

Main findings: Gaps in dose, reach, fidelity, and recruitment were largest where resources and staff were limited, but programs that paired strong community engagement with rapid course correction achieved measurably better results.

Added knowledge: By mapping these barriers and facilitators onto the dose–reach–fidelity–recruitment framework across four sectoral programs, the study pinpoints clear cross-sector entry points for nutrition-sensitive delivery – staffing, outreach design, and feedback loops.

Global health impact for policy action: Improving frontline resources, institutionalizing community participation, and embedding short adaptive review cycles can make nutrition-sensitive programs more effective and equitable.