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Molar ratios of dietary phytate to minerals and iron status of female residential students in University of Dhaka, Bangladesh

Background: Female undergraduate students may undergo many health implications due to the transition from secondary to undergraduate level. Aim: The study was aimed to assess molar ratios of phytate to minerals (calcium, zinc, and iron) in the diets, and to measure the iron status of resident female students at Dhaka University. Methods: In total, 180 female students between 18–26 years of age from 3 dormitories of Dhaka University were selected for the study. Dietary intake information was collected over three consecutive days. Multiple-Pass 24-hour recall. Blood hemoglobin and serum ferritin levels were analyzed for sub-sample (20 participants from each dormitory). Results: The mean dietary intake of phytate, calcium, zinc, and iron were estimated at 347.11, 181.04, 6.59, and 7.14 mg/day, and hemoglobin and serum ferritin at 11.34 g/dl, and 18.48 ng/ml, respectively. The respective molar ratios of phytate: calcium, phytate: zinc, phytate: iron and phytate × calcium: zinc were 0.13, 5.27, 4.20, and 21.26 in the diet of the respondents. The prevalence of anemia, iron deficiency and iron deficiency anemia among the respondents was found to be 51.7%, 48.4%, and 28.3%, respectively. Linear regression analysis showed that only zinc intake had positive association with hemoglobin, while iron and zinc intake had a significant positive, and phytate:iron molar ratio had a significant negative association with serum ferritin concentration (p < 0.05). After adjusting all significant determinants of serum ferritin, no predictors have found significant. Conclusions: Larger and more specific research is needed to clearly understand the mechanism behind anemia and iron deficiency among female residential students.