Here are a few notes about the biological role of potassium.
Potassium salts are essential for both animals and plants.
It is essential for nerve and heart function. A normal diet containing reasonable amounts of vegetables contains all the potassium necessary. The following gives the abundances of the elements in humans . Just enter your weight in either kilograms or pounds. In some browsers, after entering your weight you may have to click outside the text entry box to make the calculation work.