What is the best source for a kidney stone diet? Read a valuable and effective Kidney Stone diet plan for your safety and prevention of both your kidneys by avoiding food to eat. You can drink at least twelve glasses of water daily. drink citrus juices, such as orange juice and eat calcium-rich food at each meal, at least three times a day to limit your intake of animal protein. eat less salt, added sugar, and products containing high fructose corn syrup.