What can low potassium levels cause to the body?
potassium is an ion (K is standard abriviation)
in your blood, along with sodium (Na)
They must be in a sort of balance (lots of K in the cells, lots
of Na in the blood) for your cells to function (and for you to
live).
Low potassium is usually dietary but can be a renal (kidney)
problem.
==Answer ==
Potassium is an essential nutrient for the body. It is used for
(among other things) nerve production, blood pressure, and your
metabolism. Good sources of potassium are potatoes and bananas. Our
kidneys can not reserve potassium, so we must always replenish.
I've seen better, but this is pretty good:
http://www.selfgrowth.com/articles/Jirves1.html