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Iron excretion

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Iron losses may be:

  • exogenous - excess dietary iron that has not been absorbed by the mucosal cells is excreted in the faeces
  • endogenous:
    • in cells desquamated from the skin and the intestinal mucosa
    • from the genital tract during menstruation or pregnancy
    • minimal turnover losses from the liver into bile and thence faeces
    • urinary loss is usually negligible

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