Dialysis patients must avoid potassium and phosphorus at all costs. Potatoes contain potassium in the starch. Here is a method to prepare potatoes so that a small helping can be served once in a while and the whole family can enjoy.It is called leeching. 4 different recipes. Yellow cheese is a big "no" but cream cheese is ok. I am posting to help others with dietary concerns in this area. The diet for renal patients is totally different once you are on dialysis, now it is protein and no potassium or phosphorus. 40 minutes is combination of boiling and baking time for the cooking time.