There are several types of kidney stones, among which most of the common kidney stones are mainly composed of calcium salts. The recurrence rate of this disease is very high, so it is often possible for it to recur after treatment. In order to minimize the chance of recurrence, dietary control is very important. Dietary care needs to pay attention to the following points: 1, increase calcium intake: many people will have questions, why is it necessary to eat more calcium in the stones are calcium salts? Because according to research, enough calcium will be combined with oxalic acid and excreted by the feces, thus reducing the absorption of calcium by the intestinal tract, of course, will reduce the chance of stone production. Therefore, drinking more milk will not increase the number of stones, but help to reduce the chance of stones. 2, reduce the intake of oxalic acid: spinach, tea and other foods containing more oxalic acid to reduce consumption. 3, reduce sodium intake: diet should be light, canned and processed foods to minimize consumption. Eat more foods containing potassium, such as bananas and other foods. 4, reduce the intake of meat: reduce the intake of animal protein, can reduce the chance of stone formation. 5, drink more water and exercise: drink more water can make the salt metabolism in the urine faster, so drink at least 3000C, C water every day. More exercise can reduce bone calcium loss, and thus reduce the production of stones.