Total Zinc Absorption from a Diet Containing either Conventional Rice or Higher-Zinc Rice Does Not Differ among Bangladeshi Preschool Children
Abstract
Information is needed on zinc absorption from grain cultivars having higher zinc content. Total absorbed zinc (TAZ) from mixed diets containing high-zinc rice (HZnR), conventional rice (CR), or CR plus zinc fortificant (CR+Zn) was measured. Forty-two nonmalnourished preschool-aged children were enrolled in 1 of 2 groups. Using a crossover design, children in group A (n = 22) received for 1 d each a mixed diet containing 150 g CR or HZnR. Children in group B (n = 20) received HZnR on 1 d and CR+Zn on the other day. Fractional zinc absorption (FZA) was measured during each dietary period by using a dual-isotope tracer ratio technique; TAZ was calculated as the product of zinc intake [total dietary zinc (TDZ)] and FZA. TDZ was 3.83, 4.83, and 6.03 mg/d when the children were fed the CR, HZnR, and CR+Zn–containing diets, respectively. Mean FZA from the CR diet was greater than from the HZnR diet (25.1 vs. 20.1%, P
Citation
Islam, M.M.; Woodhouse, L.R.; Hossain, M.B.; Ahmed, T.; Huda, M.N.; Peerson, J.M.; Hotz, C.; Brown, K.H. Total Zinc Absorption from a Diet Containing either Conventional Rice or Higher-Zinc Rice Does Not Differ among Bangladeshi Preschool Children. Journal of Nutrition (2013) 143 (4) 519-525. [DOI: 10.3945/jn.112.169169]