Potassium. So much is said, yet not much is known about this mineral. For instance, did you know that il happens to be the seventh most common mineral found on the face of the planet? Also, a lack or excess of this mineral in your body can be potentially deadly? Now that you know all this, let's take a look at how to get enough potassium in your diet, as well as how to detect if you're not getting enough, or too much.