For patients with urinary tract stones, milk can be consumed appropriately. Because milk contains high calcium content, milk consumption should be appropriately controlled for urinary stones that are found to be high in calcium. If the stones are relatively pure, including cystine stones or uric acid stones, which are mainly due to abnormalities in human metabolism, even the intake of milk has no effect on the progression of the disease in such stones. Therefore, for patients with stones, an analysis of the composition of the stones should be performed to identify the specific causes of the stones and to focus on dietary intervention and prevention. If milk is consumed at the same time as vegetables with high oxalic acid content, there is an increased risk of stone formation and the diet should be separated to prevent stone formation.