1, drink more water more water so that the urine is diluted, the concentration of calcium ions and oxalate will be reduced, the formation of calcium oxalate stones can not. Research shows that increasing the volume of urine by 50% can reduce the incidence of kidney stones by 86%. 2, eat less food with high oxalate content Foods containing high oxalate include tomatoes, spinach, beets, chocolate, etc. Excessive oxalate intake is also one of the main causes of kidney stones. 3, limited intake of sugar The results of a recent study by American scientists show that the intake of high-sugar foods can increase the chance of kidney stones, therefore, pay attention to eat less sweets. 4, eat more fresh vegetables and fruits and other alkaline food, less meat, carbonated beverages and other acidic food Vegetables and fruits contain vitamin B1 and vitamin C, their final metabolites in the body is alkaline, uric acid in alkaline urine is easy to dissolve, so it is conducive to treatment. The meat food makes the urine acidic and easy to form stones. Therefore, usually eat more vegetables and fruits that can produce alkaline in the body, eat less or avoid (during the disease) meat, animal offal, broth, gravy, sardines, crab, strong tea, coffee, etc., strong spices and condiments should also be used sparingly. 5, supplement fiber In recent years, it was found that fiber in food can reduce the formation of urinary calcium, so eat more bran bread, high fiber food can prevent the occurrence of stones. 6, reasonable supplementation of calcium As we increase concern about osteoporosis, have learned the importance of calcium, and thus pick more beans and other calcium-rich foods. Whether this will easily cause kidney stones t whether there is a need to reduce it t the answer is certainly not necessary. Many people will have questions about why it is necessary to eat more calcium instead of calcium salts in stones. Kidney stone patients often “talk about calcium”, wrongly believe that the culprit of kidney stones is calcium. In fact, kidney stone patients also need calcium supplements. There are two different perspectives in the medical field to explain why kidney stone patients need calcium supplements. According to a study conducted in 1993, people with adequate calcium intake are less likely to develop kidney stones than those with low calcium intake. Japanese scholars have proposed the “acid-base balance theory”, which states that when blood is acidic, stones are easily formed; when it is alkaline, stone formation is inhibited. According to research, sufficient calcium combines with oxalic acid contained in vegetables in the gastrointestinal tract to form insoluble calcium oxalate, which is excreted in the feces and becomes less likely to enter the urine, thus reducing some of the oxalic acid absorbed by the gastrointestinal tract and excreted through the kidneys. By reducing the level of oxalic acid in the urine, the chances of stone formation are reduced. The blood is acidic when calcium is deficient, so a reasonable calcium supplement to make the blood alkaline will not increase stones, which will instead help inhibit stone formation. 7, eat foods rich in vitamin A Vitamin A can maintain the respiratory tract, digestive tract and urinary tract lining health, but also help to avoid the recurrence of stones, such as: carrots, green cauliflower, rape, amaranth, chicken liver, lamb liver, etc.. Excessive supplementation of vitamin A can easily lead to poisoning, so it is best to take it from food, it is not recommended to take high doses of vitamin A orally. 8, do not overdose cod liver oil cod liver oil is rich in vitamin D, has the function of promoting intestinal membrane absorption of calcium and phosphorus, suddenly increase the excretion of calcium and phosphorus in the urine, is bound to produce precipitation, easy to form stones. 9, drink milk before going to bed cautiously people who do not sleep well, drink a glass of milk before going to bed to help sleep. But after sleep, urine volume is reduced, concentrated, and various tangible substances in the urine increased. And 2-3 hours after drinking milk, it is the peak of calcium excretion through the kidneys. The sudden increase of calcium through the kidneys in a short period of time makes it easy to form stones. Therefore, patients with kidney stones should not drink milk with high calcium content before going to bed.