Table 2.

Causes of magnesium deficiencya

Gastrointestinal
    malnutrition
    malabsorption
    chronic diarrhea
    primary infantile hypomagnesemia
    nasogastric suction
    intestinal fistula
Renal
    congenital magnesium wasting
    Bartter syndrome
    Gitelman syndrome
    postobstructive diuresis
    diuretic phase of ATN
    loop and thiazide diuretics
    cisplatin
    aminoglycosides
    pentamidine
    foscarnet
    cyclosporin A
    tacrolimus
Endocrine
    hyperparathyroidism
    hyperthyroidism
SIADH
    hyperaldosteronism
Redistribution
    hungry bone syndrome
    acute pancreatitis
    blood transfusions
    insulin treatment
Miscellaneous
    diabetes
    chronic alcoholism
  • aSIADH, syndrome of inappropriate antidiuretic hormone secretion.