Objective: To determine the frequency and type of food consumed by children under 36 months of age supplemented with iron at the Toribia Castro Chirinos Health Center - 2021. Method: Quantitative, descriptive, cross-sectional research. We interviewed 136 mothers aged 18 years and older, with children under 36 months, with ferrous supplementation and hemoglobin level higher than 11 g/dl; sampling was by convenience. The questionnaire "frequency of food consumption" (Crombach's alpha 0.75) was applied.  Data were collected through an online questionnaire using Google forms. Descriptive analysis was performed according to nominal variables in the Excel 2021 program. Main results: The mothers expressed that 80% of the children had liver, chicken and eggs prepared for them; 44.12% consumed fish. The fruits always supplied were granadillas and bananas, 87.50% of children consumed fruits i...