Turmeric is a spice commonly used in Indian and Asian cuisine, and has been traditionally used in Ayurvedic medicine for various health benefits. Some studies suggest that turmeric may have a protective effect on the kidneys, but more research is needed to confirm this. However, there is no scientific evidence that turmeric can prevent or treat kidney stones. In fact, turmeric supplements may increase the risk of kidney stones in some individuals, particularly if they have a history of kidney stones or other kidney problems. It is always recommended to consult with a doctor before taking any supplement.