Have you suffered from painful kidney stones earlier? Kidney stones are very common and also tend to reappear after healing. Here are some simple tips to help prevent them: Drink enough water - People who have around 2 litres of water daily are 50% less likely to develop kidney stones. Minimize high-oxalate foods -Foods like spinach, beets, and almonds raise the oxalate levels in the body. Enjoy some lemons - Citrate, a salt in citric acid, binds to calcium and helps block stone formation. Watch the sodium - A high-sodium diet can trigger kidney stones because it increases the amount of calcium in your urine. Reduce your sodium intake.