@dogpoundginger You asked my thoughts, so here they are. I went to the website you mentioned, and could not find any medical data to support their claims. Likewise, there didn't seem to be any formal training for the gentleman behind it all. By my inborn skeptical nature, I would be leery of such a form to address my kidney issues. And you're right, almost $200 per month for their "supplements". Oww!

Education via a good renal dietician, your own experiences, healthy eating and exercise for your situation, and a willingness to be your own advocate may be the best road to follow.
Ginger