Q: What can happen if your potassium level is too low?

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Potassium is a vital electrolyte your body needs for nerves and muscles, including the heart, to function normally. Low potassium levels—or hypokalemia—can cause heart rhythm problems. It can also cause fatigue, weakness, muscle cramps, and constipation. However, mildly low levels may not cause any symptoms.

More About Hypokalemia

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  1. Low Blood Potassium. U.S. National Library of Medicine.
  2. Low Potassium (Hypokalemia). Mayo Foundation for Medical Education and Research.
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