Article révisé par les pairs
Résumé : The serum Mg level is often lowered in chronic alcoholics. This biological disorder, often associated with signs of malnutrition, disappears after withdrawal; no Mg supplementation is necessary. Whereas, therefore, deficient Mg intake appears to be the main cause, a deficient intestinal absorption is probably involved as well, and possibly loss of the element through the kidneys, under the direct or indirect influence of chronic drinking. After withdrawal, a renal Mg saving mechanism helps correct the hypomagnesiemia. No biological parameters, especially not those of the phosphocalcium metabolism or the degree of hepatocellular lysis appear to have a causal relationship with the lowered serum Mg level. Nor is there any correlation between the degree of hypomagnesiemia and clinical signs such as drug dependence.