Drink plenty of fluid, especially water.
This is the most important thing you can do to lower your risk of getting another kidney stone. Aim for at least 2 ½ - 3 litres (10-12 cups) of fluid each day. People with cystine stones may want to aim for 4 litres (16 cups).If you are not used to drinking this much fluid, start by adding one extra glass of fluid each day and slowly increase the number of glasses you have. Sugary drinks such as pop, fruit drinks, and specialty coffee and tea drinks are not good choices for increasing the amount of fluid you drink. They may increase your risk of kidney stones.
Eat calcium rich foods instead of taking supplements.
Calcium rich foods include milk and other dairy products, calcium fortified foods and beverages such as calcium-fortified tofu, calcium fortified soy and rice drinks and orange juice, fish canned with the bones.
Carry a water bottle with you throughout the day.
Include at least one beverage with each meal. Keep a pitcher of water on the counter or in the fridge when you're at home and work. Add some cut up lemon, lime, watermelon or mint leaves to your glass of water for a refreshing flavor. Set reminders for yourself for automated emails or texts on your Smartphone, or pop-ups in your calendar at work.
If you had calcium oxalate stones, limit high-oxalate foods (>10mg per
serving). Many of these foods are healthy choices so you don't want to avoid
them completely. When you eat foods high in oxalate, have them with a food that
is rich in calcium.
