---
title: "Symptoms of Low Potassium: Causes, Ranges, and What to Do"
description: "Low potassium often comes from diuretics or stomach illness; normal is ~3.5–5.0 mmol/L. Learn symptoms and when to act—no referral needed."
canonical: "https://www.vitalsvault.com/symptom-levels/symptoms-of-low-potassium"
last-updated: 2026-08-22
---

# Symptoms of Low Potassium: Causes, Ranges, and What to Do

> Low potassium often comes from diuretics or stomach illness; normal is ~3.5–5.0 mmol/L. Learn symptoms and when to act—no referral needed.

---

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