Cystinosis is a hereditary defect of the renal tubules, how to prevent cystinosis? The most important way to prevent cystinosis is to increase water intake. Water can dilute urine and prevent high concentrations of salts and minerals from accumulating into stones. The right amount of water is up to 2 liters of urine a day, even if it is enough. If you work in the hot sun all day, you need to drink 2 gallons of water. 2.Supplementation of fiber Adding rice bran can prevent stones from occurring. 3.Control your calcium intake A large percentage of stones are formed from calcium or products containing calcium. 4, check your stomach medicine Some common acidulants contain high levels of calcium. Don’t eat foods rich in oxalates About 60% of all 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 of the cabbage family. Also avoid alcohol, caffeine, tea, chocolate, dried figs, lamb, nuts, green peppers, black tea, poppy seeds and so on. 6, more activity inactive people are prone to calcium pooling in the blood. Exercise helps calcium flow to the bones where it belongs. Do not sit all day waiting for the formation of stones, should go outdoors to walk or exercise. 7, eat foods rich in vitamin A Vitamin A is necessary to maintain the health of the lining of the urethra, it also helps to prevent the recurrence of stones. Healthy adults need to consume 5, 000 units (lu) of vitamin A a day, and a cup of carrots can provide 10, 055 lu of vitamin A. Other foods rich in vitamin A include cauliflower, apricots, parsnips, squash, and beef liver.