Calcium stones account for 75% of renal calculi. Recent data suggest that a low-protein, low-salt diet may be preferable to a low-calcium diet in hypercalciuric stone formers for preventing stone recurrences.[6] Epidemiological studies have shown that the incidence of stone disease is inversely related to the magnitude of dietary calcium intake in first-time stone formers.
There is a trend in the urology community not to restrict dietary intake of calcium in recurrent stone formers. This is especially important for postmenopausal women in whom there is an increased concern for the development of osteoporosis. Calcium oxalate, calcium phosphate, and calcium urate are associated with the following disorders: