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. 2012 Feb;5(Suppl 1):i3–i14. doi: 10.1093/ndtplus/sfr163

Table 2.

Distribution of magnesium in the adult human being, molar mass of magnesium = 24.305 g/mol; Reprinted from [7], with permission from Elsevier

Tissue Body weight (kg wet weight) Concentration (mmol/kg wet weight) Content (mmol) % of total body magnesium
Serum 3.0 0.85 2.6 0.3
Red blood cells 2.0 2.5 5.0 0.5
Soft tissue 22.7 8.5 193.0 19.3
Muscle 30.0 9.0 270.0 27.0
Bone 12.3 43.2 530.1 52.9
Total 70.0 64.05 1000.7 100.0