If you suffer from kidney stones, drink at least 64 ounces of water each day. Reduce salt in your food by reducing intake of processed food loaded with preservatives. Reduce your consumption of eggs, spinach, beetroot, chocolate and nuts, as well as aerated drinks. Make sure you are getting plenty of fibre in your diet. Avoid carbonated drinks. Too much salt or sodium, oxalates, calcium and Vitamin C supplements are not good for you.