Potassium is an electrolyte, which is a mineral that helps your body send signals through the muscles. Without adequate potassium, your body’s nerves may not function properly, and you may experience muscle cramping or twitching and have difficulty contracting your muscles the proper way. Because your body loses electrolytes when you sweat, it’s important to get plenty of potassium in your diet if you lead an active life. It is possible to have too much potassium, but a healthy liver will remove any excess potassium from your blood. Eating potassium-rich foods like bananas, spinach, squash, and avocados is the best way to ensure you are getting enough from natural food sources. If you tend to sweat a lot and notice muscle cramps during exercise, you may want to consume an electrolyte drink during your workouts to stay hydrated.