1. Drink plenty of water, especially for manual workers or people working in high temperature. The amount of drinking water every day is about 2500 ml, which will increase to about 4500 ml in hot summer, and will increase after sweating. The amount of urination every day is at least 2000 ml.

Don't drink strong tea, drink green tea or water instead.

3. Magnetized water can be used for drinking, which is easy to disintegrate stones.

4. Eat less animal protein, including animal meat and internal organs; Eat more foods containing vitamin A, such as pork liver, eggs, fresh cabbage and fruits.

5. Eat less salt and keep a light diet.

6. Eat less vegetables containing more oxalic acid, such as spinach, beetroot and other dark green vegetables, because calcium oxalate is the main component of urinary calculi.

7. Eat less foods that are likely to increase urate, cystine and xanthine, such as animal viscera, seafood, beans and peanuts.

8. Eat less foods rich in calcium, such as kelp, black fungus, beans, amaranth, milk, celery, seaweed, eel, salted radish, pumpkin seeds, dried red dates, etc.