Introduction: Although several social interventions have been developed by the Peruvian State, anemia is present in one out of every two children in Peru. Thus, it is important to evaluate whether such interventions are achieving their objectives. Objective: This study aimed to determine the association of nutritional status and anemia with multi-micronutrient supplementation in children younger than three years in Huancayo, Peru. Materials and Methods: This retrospective, longitudinal, analytical, and observational study included secondary data of children younger than 3 years from the Sicaya District, in the Huancayo province. Data were collected from health center medical records. Nutritional and anemia status, and socio-demographic characteristics of children receiving multi-micronutrient supplementation were recorded. Statistical analyses were based on generalized linear models. Res...