Patients who took calcium supplements had lower total calcium and oxalate in their urine while blood levels were siteblogs unaffected. However, these patients also had a faster rate of kidney stone growth suggesting that the siteblogs02 mechanism of calcium supplementation on stone formation may not be straightforward. siteblogs03 Vitamin D supplementation also decreased urinary calcium excretion as well as stone growth siteblogs04, suggesting that it may help prevent the risk of stone formation siteblogs05.