What is the cause of kidney stones?

Causes of Kidney Stones:
Insufficient intake of fluids ,Excess intake of Vitamin D and lack of Vitamin C,Excess intake of meat, condiment and spices, white flour and sugar products, tea and coffee, acid forming foods,Overeating can lead to formation of stones.

The main reason of kidney stones is dehydration from reduced fluid intake or strenuous exercise without adequate fluid replacement increases the risk of kidney stones Also Dietary factors and practices may increase the risk of stone formation in susceptible individuals. In particular, inadequate fluid intake predisposes to dehydration, which is a major risk factor for stone formation. Other dietary practices that may increase an individual's risk of forming kidney stones include a high intake of animal protein, a high-salt diet, excessive sugar consumption, excessive vitamin D supplementation, and possible excessive intake of oxalate-containing foods such as spinach. Interestingly, low levels of dietary calcium intake may alter the calcium-oxalate balance and result in the increased excretion of oxalate and a propensity to form oxalate stones.

Hi

Both are correct. You can prevent the kidney stones by taking plenty of fluids, reducing uric aids foods. maintaining the calcium intake, low in protein, low in salt, reducing the intake of oxalate, studies have shown that by reducing coffee intake can reduce the stone formation.