The document summarizes two studies conducted in Ethiopia using the Link NCA methodology to understand the causal pathways of undernutrition. The studies were conducted in 2014 in East Harargue zone and Sidama zone. In East Harargue, acute malnutrition (GAM) was found to be 12% among boys aged 6-17 months. Main risk factors identified included poor access to health services, water and sanitation, inadequate infant and young child feeding practices, and food insecurity. In Sidama zone, GAM was 5.6% among boys aged 18-29 months. Main risk factors there were also found to be preventable childhood illnesses, poor access to health services and water, inadequate feeding practices, and poverty.