Hi, Usually, the severity of kidney disease is determined based on clinical symptoms. These symptoms are breathing difficulty, leg swelling, Edema in the lungs, and fatigue. All of these are seen because of the fluid overload or the lack of hemoglobin in the blood. Getting to your question. The diet has very little to do with creatinine level as creatinine is a toxin and it is only excreted by the kidney. The creatinine level would always stay constant unless more creatinine is excreted. Creatinine can be excreted when one gets dialysis done. In most people, dialysis is attempted with hemodialysis and less often with peritoneal dialysis. It would be a good idea to consult a doctor to discuss using dialysis to control your creatinine levels. However, maintaining a healthy diet and taking good food can help prevent other symptoms of chronic renal disease. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Vignan Rachabattuni, General & Family Physician