"study suggests that consuming twice as much potassium as sodium can halve your risk of dying from cardiovascular disease. The study is the first to show that the ratio of these nutrients in your diet matters more than exactly how much you get of either one."
I didn't really find paleo increased my potassium, but it definitely reduced my sodium--so much so that I suffered cramps until I figured out what was going on and started liberally salting stuff. All the processed foods I gave up are replete with sodium, and I essentially was now on a sodium-restricted diet. I wonder if the balance between the two minerals is more important than the overall quantity consumed.
I also wonder where those paleo people who consume few vegetables/fruits get potassium, as animal products don't seem especially rich in it.
I don't know what the symptoms of inadequate potassium are other than muscle cramping. I do supplememt with 700 mg of potassium chloride (KCL) each day just to make sure I get enough. The rest of my intake is from white potato mostly.