<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi.. My son who is about 24 years of age is been having recurrent pain in the back. He was diagnosed to have stones in the kidney. He has had about 7 episodes of such events in the last 1 year. Can any one suggest methods to prevent this.. It hurts every time to see my son suffer with pain.. Please help..  <response>: 1. when he was diagnosed to have kidney stone, that too with 7 episodes, do tell about the TYPESIZE of kidney stone which your Physician has told you?2. Avoid: spinach, milk and milk products, tomatoes, capsicum, watermelon, guava, brinjal, lady finger, chocolate, beets, Beans, and peanuts.3. Avoid using too much salt and sugar, antacid tablets containing calcium and vitamin D4. Increase your intake of potassium and magnesium but avoid phosphorus rich food cashew nuts, almonds,cuminpoppy seeds 5. Eat fiber rich diet whicChatDoctorbines with calcium in urine and is excreted in stools. 6. because RECURRENT episodes are there check you calcium level and seek opinion of an endocrinologist. 