This study tested a behavioral intervention aiming to help reduce the prevalence of anemia in children in El Salvador. It first describes a traditional micronutrient distribution program for rural households. The analysis shows that although implementation was relatively successful, and take-up high, adherence to the full treatment of micronutrients was much lower. To explain this gap, the analysis employs a design methodology based on the “caregiver journey.” This methodology is a sequential analysis of the decisions taken by caregivers and the factors affecting each of these decisions. The study then explores the behavioral barriers to each of these decisions by examining relevant literature and conducting semi-structured interviews in the field.