1. Drink more water No matter which type of stone you have, the most important way to prevent it is to increase your water intake. Water dilutes the urine and prevents high concentrations of salts and minerals from accumulating into stones. The appropriate amount of water to drink is 2000ml per day (in case of no abnormal kidney function). 2.Supplementation of fiber Adding rice bran can prevent the occurrence of stones. 3.Control the intake of calcium More than half of stones are formed by calcium or products containing calcium. If your last stone is mainly composed of calcium, you have to pay attention to the intake of calcium. If you are taking nutritional supplement crystals, the first thing you need to do is to ask your physician if it is necessary. The next step is to check your daily intake of foods high in calcium, including milk, cheese, cream and other dairy products. Milk and antacids may produce kidney stones. 4. Do not eat foods rich in oxalates About 60% of stones are calcium oxalate stones. Therefore, you should limit your intake of oxalate-rich foods, including beans, beets, celery, chocolate, grapes, peppers, parsley, spinach, strawberries and vegetables from the kale family. Also avoid alcohol, caffeine, tea, chocolate, dried figs, lamb, drupes, green peppers, black tea, poppy seeds, etc. 5, more active people who do not like to be active tend to make calcium stagnation in the blood. Exercise helps calcium flow to the bones where it belongs. Do not sit around all day waiting for stones to form, but go for a walk or exercise outdoors. Vitamin A is necessary to maintain the health of the lining of the urethra. It also helps prevent stones from recurring. Healthy adults need to consume 5,000 units (Iu) of vitamin A. Other foods rich in vitamin A include carrots, green cauliflower, apricots, melon, pumpkin, beef liver, etc. (Vitamin A is toxic at high doses. (Vitamin A is toxic at high doses. Therefore, before you want to supplement vitamin A, you should first go through a doctor’s consent.) 7. Pay attention to protein intake There is a direct correlation between kidney stones and the amount of protein intake. Protein can easily cause uric acid, calcium and phosphorus to appear in the urine, leading to stone formation. If you have had calcium stones, you should pay special attention to excessive protein intake, especially if you have a history of excessive uric acid or cystamine stones. Limit yourself to 180 grams of high-protein food per day, which includes meat, cheese, chicken and fish. If you have calcium stones, you should reduce your salt intake. You should reduce your daily salt intake to 2-3 grams. 9.Limit the amount of vitamin C. 10, do not take too much vitamin D Excess vitamin D may lead to the accumulation of calcium in various parts of the body.