Potassium is a mineral in the body that helps maintain fluid
balance, nerve function, and muscle contraction, as well as the proper
transmission of electrical impulses in the heart. Potatoes and bananas are
especially good sources of potassium, which also is found in many meats, milks,
fruits, vegetables, and grains.
Both low and high potassium levels can disrupt the normal
electrical impulses in the heart, which leads to irregular heartbeats
Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology & Stephen Fort, MD, MRCP, FRCPC - Interventional Cardiology
The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.