The essential mineral is key to heart, muscle, and nervous system function, with one major caveat—your body doesn’t make it, so you have to get it all from your diet.

Medically reviewed by Allison Herries, RDN Key Takeaways Potassium is a type of electrolyte that helps your bones, muscles, and nerves work properly.Although potatoes are known for their potassium ...

Hyperkalemia is when you have too much potassium in your blood. Your body needs some potassium to help your muscles contract, keep your fluid levels balanced, and control your blood pressure. But too ...

If you're trying to increase your potassium intake but can't stand bananas, eat these foods rich in the essential mineral and electrolyte instead.

A healthy amount of potassium helps regulate your heartbeat, lowers blood pressure, and keeps muscles and nerves functioning at optimal levels. Although many adults in the US don't get enough ...