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Updated: Aug 20, 2026

Measurement of Total Calcium in Neurons by Electron Probe X-ray Microanalysis
Published on: November 20, 2013
Balance of magnesium positively correlates with that of calcium
Mamoru Nishimuta1, Naoko Kodama, Eiko Morikuni
1Laboratory of Mineral Nutrition, The Incorporated Administrative Agency of Health and Nutrition, 1-23-1 Toyama, Shinjuku, Tokyo (162-8636), Japan. nisimuta@nih.go.jp
Background And Objective:
In a prior study, we showed no significant relationship between intake and balance of magnesium (Mg). Subsequent further investigation disclosed that intakes of both Ca and P were positively correlated with their respective balances, whereas intake of Mg did not show any significant correlation with Mg balance. In this paper, we show positive correlations between intake of Mg and balances of both Ca and P.
Methods And Results:
Using these correlations, the mean value and upper limit of the 95% confidence interval (from the regression equation between Mg intake and either the balances of Ca or that of P, when each balance is equal to zero) were 4.584 and 4.802 (against Ca balance), 4.554 and 4.785 (against P balance) mg/kg BW/d, respectively. Balances of Mg and Ca correlated with each other.
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