Victoria - Thank you for the important precaution reminder.
I'm very sorry to read about your kidney problem and hope you can at least stabilize and remain so without dialysis.
As I child I had a kidney problem from eating excess sodium. I was on a strict, no sodium, no-protein diet for 4 months and confined to bedrest.... measuring intake and output ..of fluids. I was given a medication and the doctor came to check on me weekly. (The good old days). Fortunately, my kidney function has been normal all these years... but I am always aware and have kidney function checked twice a year.
If afibbers intend to supplement with potassium, they should have regular lab tests to monitor their potassium levels. Former afibber, TomC, had posted that when his potassium was elevated, it was a trigger for AF. He introduced the CardyMeter to the forum.
Jackie