If your potassium levels drop low enough, you may start to feel faint or lightheaded. This symptom typically occurs as a result of the abnormal heart rhythms that are often associated with potassium deficiency. You might also experience a tingling sensation, which is often a sign of impaired nerve function. Because potassium has a key role in regulating your nervous system, many of the symptoms of this deficiency directly involve nerve function.
While lightheadedness may occur from time to time in less severe cases of low potassium, you might experience it more frequently if you have a more serious case. Regardless of what this symptom looks like for you, it's important to take it seriously. Whether you're experiencing mild dizziness or the issue is happening on a more regular basis, be sure to seek out the medical assistance you need.

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