Latar belakang: Anemia merupakan masalah kesehatan global yang menyarang remaja putri. WHO memperkirakan 30% remaja mengalami anemia yang disebabkan karena kekurangan asupan zat besi, sementara kebutuhan zat besi relatif tinggi akibat adanya menstruasi. Tujuan penelitian adalah mengetahui hubungan status gizi dengan kejadian anemia pada remaja putri. Metode: Penelitian ini merupakan penelitian observasional dengan rancangan cross sectional yang dilakukan di wilayah kerja UPTD Puskesmas Mengwi II pada bulan April-Mei 2025. Variabel bebas penelitian ini adalah status gizi yang dinilai berdasarkan IMT, dan variabel terikat adalah kejadian anemia yang dinilai berdasarkan kadar HB dalam darah. Sampel penelitian adalah remaja putri kelas VII-XII dengan sampel minimal berdasarkan rumuh WHO sebanyak 194 sampel dan dipilih dengan metode simple random sampling. Analisis data penelitian menggunakan uji Chi-Square test dengan nilai p

Background: Anemia is a global health problem affecting young children, teenage girls, pregnant women, and maternity mothers. WHO estimates that 30% of adolescent women are anemic. The main cause of nutritional anemia in teenage girls is due to insufficient intake of nutrients through food, while iron requirements are relatively high due to menstruation. The purpose of this study was to determine the relationship between nutritional status and the incidence of anemia in adolescent girls. Methods: This study was an observational study with a cross sectional research design conducted in the working area of Public Health Centre Mengwi II from April to May 2025. The independent variable in this study was nutritional status assessed based on BMI, and the dependent variable was the incidence of anemia in teenage girls assessed based on HB levels in the blood. The research sample was teenage girls from class VII to class XII with a minimum sample based on the WHO formula of 194 samples and selected by simple random sampling method. The data were analyzed using Chi-Square test with p value