• Journal of the Korean Society of Food Science and Nutrition
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• v.27 no.6
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• pp.1273-1278
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• 1998

The purpose of this study was to investigate effect of iron intakes on utilization of macrominerals (Ca, Mg, Na, K) in rats fed adequate, 2 fold, 4 fold iron for 12 weeks. There were no differences in feed intake, body weight gain, serum and liver levels of macrominerals across iron groups. Ca level in kidney of 4 fold iron group was significantly higher than those in other groups. Excretions of Mg through feces and Ca, Mg, Na, and K through urine were significantly increased with increment of iron intake. In the case of macromineral balances, daily retentions of Mg, Na, and K in adequate iron group were higher than those in 2 /4 fold iron groups. However there was no difference in Ca retention across iron groups. Therefore, it should be considered interaction with macromineral in iron supplementation.