Having had first-hand experience with AFIB that I had for two years that went away when I started drinking 64 ounces of low sodium V8 juice (which is loaded with potassium) every day, I am pretty sure they don't prescribe a potassium supplement because there is no money in it.
I was in heart-transplant territory, with a 15% ejection rate. I underwent cardioversion twice, with no effect. My cardiologist was talking about ablation or some sort of heart implant device, both of which are profit centers.
Then I started drinking the V8 and the AFIB went away. My ejection rate is now over 50%, which is in the normal range.
I have great respect for my cardiologist, but these days doctors are handcuffed by the bean-counters' "protocols."
I believe this graph pretty much nails the problem.
