Q: Years ago, my doctor advised against potassium supplements because of the risk of a heart attack. Now, I am reading that potassium is important to heart health. Which is right?
A: Both are correct. Potassium is essential for the proper function of all cells in the body. It helps regulate the activity of muscles, including the heart. Too much or too little potassium can cause heart beat problems that may lead to death. Some medications used to treat high blood pressure result in lower than normal blood levels of potassium so supplements or eating foods rich in potassium, such as bananas or dried apricots, are recommended. People with kidney problems, usually need to avoid these foods and supplements because poor functioning kidneys can cause elevated blood levels of potassium.
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