[Hypercalciuria and hereditary fructose intolerance (author's transl)].

Hereditary fructose intolerance includes a dysfunction of the proximal renal tubule, which disappears when fructose is excluded from the diet. A 46 month-old girl, fed with such a fructose-free diet since the age of 4 months, presented with a renal hypercalciuria. The significance of this disorder is discussed.