The distribution of body iron is Hemoglobin: 2 g (men), 1.5 g (women) Ferritin: 1 g (men), 0.6 g (women) Hemosiderin: 300 mg Myoglobin: 200 mg Tissue enzymes (heme and nonheme): 150 mg Transport-iron compartment: 3 mg Iron absorption Iron is absorbed in the duodenum and upper jejunum.