Hubungan Pengetahuan Gizi dan Ketahanan Pangan Rumah Tangga dengan Kualitas Diet pada Wanita Post-Partum di Kecamatan Semampir Kota Surabaya

Background: The postpartum period is a critical phase requiring optimal nutritional intake for maternal recovery and ensuring the quality of breast milk. In densely populated urban areas such as Semampir District, dietary quality is often influenced by the level of nutrition knowledge and household economic conditions. Objective: This study aims to analyze the relationship between nutrition knowledge and household food security with dietary quality among postpartum mothers in Semampir District, Surabaya. Methods: This was an observational analytical study with a cross-sectional design. A total of 340 postpartum mothers were selected using simple random sampling. Nutrition knowledge was measured through a structured questionnaire, food security was assessed using the Household Food Insecurity Access Scale (HFIAS), and dietary quality was measured using the 3-level Balanced Diet Index derived from 24-hour food recall data. Data were analyzed descriptively and through the Chi-Square correlation test. Results: The findings indicated that the majority of respondents possessed a good level of nutrition knowledge (average correct answers >75%), with the highest score in anemia prevention (81.2%) and the lowest in the functional role of Vitamin A (75.9%). Dietary quality assessment revealed that most respondents were in the [Select: Moderate/Poor] category based on IGS scores. Bivariate analysis showed a significant relationship (p < 0.05) between both nutrition knowledge and household food security with the dietary quality of postpartum mothers. Conclusion: Good nutrition knowledge and stable food security contribute positively to the dietary quality of postpartum mothers. Targeted nutritional education regarding micronutrients and strengthening food access at the household level are essential to optimize maternal health during the postpartum period in urban settings.