[Dietetic approach to renal lithiasis]

Because of the diversity and importance of dietary factors in the pathogenesis of renal stones, a nutritional survey must be carried out in order to determine the quantity of protein, calcium, oxalate, sodium, sugar, vitamin D, vitamin C, ingested and the fluid intake and the quality of the drinking water. Although defects are observed in all parameters, it is essential to reduce the intake of protein, calcium, oxalate, sodium, vitamin D, vitamin C as well as increase the sucrose intake and recommend dietary therapy based on mineral water rich in bicarbonate.