@christine15 , Hi there, Sites that I have found useful are: This site, Mayoclinic DaVita Site.
However I have found this site a little confusing, so when he uses ingredients such as avo or whole eggs, I find a low potassium alternatives. The best site for me is the "America n Kidney Fund, Kidney kitchen. I must stress however that you need to take your own circumstances in to account and keep on investigating. For example, I suffer from gout and yesterday found that apples and cauliflower contain purines which are a no, no for gout although they are considered Kidney friendly. At 82 I have several health issues and it is a matter of juggling which foods that are kidney friendly but meet the needs of other health issues. I hope this has been helpful and hope you are successful.