1. Drink more water. Regardless of the 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 is 2000ml per day (in the absence of abnormal kidney function). 2. Fiber supplementation. Adding rice bran can prevent the occurrence of stones.3. Control the intake of calcium. More than half of the stones are formed by calcium or products containing calcium. If your last stone was 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 activity. Inactive people tend to make calcium stagnate in the blood. Exercise helps calcium flow to the bones where it belongs. Do not sit around all day waiting for stones to form, you should walk or exercise outside. 6. Eat foods rich in vitamin A. Vitamin A is necessary to maintain the health of the lining of the urethra, and it also helps prevent stones from recurring. Healthy adults need 5,O00 units (Iu) of vitamin A a day, and foods rich in vitamin A include carrots, green cauliflower, apricots, melon, pumpkin, and beef liver. (Vitamin A is toxic at high doses. Therefore, before you want to supplement vitamin A, you should go through a doctor’s consent.) 7. Pay attention to the intake of protein. Kidney stones are directly related to the intake of protein. 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 foods per day, which includes meat, cheese, chicken and fish.8. Eat less salt. 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 cause calcium to build up in various parts of the body.