Potassium is not necessarily good for everyone. If you eat too much sodium, you may need to eat extra potassium. However, you should be very careful with potassium supplements. Potassium and sodium sit on either side of the cell walls, and they regulate the heart cells. Too much of one can cause a deficiency of another. During heart surgery, potassium is injected into the heart to stop it. Injecting potassium into someone's heart will kill them, if it's not under medical circumstances, where the heart is deliberately being stopped.
One of the times I actually had to call the paramedics was during a panic attack that was induced by taking potassium supplements. I do not take vitamin or mineral supplements, for the very reason that they can upset the chemical balance in your body. Too much of one can cause deficiencies of another. The same can happen with calcium and magnesium. If you take calcium supplements, without adequate magnesium, you can really mess up your heart, among other things. Too much of one B vitamin will cause deficiencies in another, and so on.
The best thing to do is to get your nutrients from whole organic food sources. You can use supplements are food-matrix based, but taking individual minerals such as potassium is very risky and probably shouldn't be done without medical supervision. [/i]
