2nd Edition of Public Health World Conference (PHWC) 2026

Abstract

Despite decades of global investment, malnutrition remains one of the most persistent and complex public health challenges, particularly in low- and middle-income countries where fragmented interventions fail to address its multi-dimensional nature. There is a critical need for scalable models that integrate health, nutrition, and socioeconomic determinants within coherent system-level approaches.

This presentation introduces an integrated, multi-sectoral model designed to address the root causes of malnutrition through coordinated action across primary health care, nutrition, early childhood development, water and sanitation, food access, and economic strengthening. Implemented in rural Guatemala under the Guatemaltecos por la Nutrición (GPN) initiative, the model is grounded in the UNICEF conceptual framework and operationalized through a process-based management approach that enables standardization, quality assurance, and scalability across implementation sites.

The intervention targets pregnant women, children under five, and their families in highly vulnerable rural communities. Baseline data from 706 women, 278 men, and 502 children under five highlight significant socioeconomic constraints, limited access to services, and gaps in preventive health behaviors.

Preliminary results demonstrate a substantial reduction in acute malnutrition prevalence, decreasing from approximately 6% to 0.38% in intervention communities. Additional improvements include enhanced early detection, increased treatment adherence, improved service utilization, and strengthened continuity of care. These outcomes suggest that integrated system design, combined with standardized operational processes, can significantly improve implementation effectiveness.

Beyond outcomes, this model offers critical insights for global health practice. First, effective malnutrition reduction requires coordinated, multi-sectoral strategies rather than isolated interventions. Second, embedding process-based management within program design enhances fidelity, accountability, and replicability. Third, strengthening local systems and capacities is essential to achieving sustainable and scalable impact.

This model provides a practical and adaptable framework for scaling integrated health and nutrition interventions in resource-limited settings and contributes to the global agenda on health systems strengthening and equitable child health outcomes.