Anemia is an on-going problem in the world including the Philippines where it is a mild public health concern. In developing countries, iron deficiency is the main cause of anemia. Women are more susceptible to anemia due to higher iron requirements than men along with physiological factors such as menstruation and pregnancy. A cross-sectional study was conducted on 940 female undergraduate students in Santa Cruz, Laguna where an online questionnaire was used. The level of KAP was classified as high, moderate, and poor for knowledge and practices and positive, neutral, and negative for attitude. The results of the study showed that there is high knowledge, negative attitude, and moderate practices to taking iron supplementation. There is a very weak linear correlation for knowledge and attitude (r!=0.13) and in knowledge and practice ( r!=0.17) while there is a weak linear correlation in attitude and practice (r!==0.33). The findings of the study can be used as a case reference for future studies of similar nature that may look into other variables that are beyond the scope of the study.