About Potassium
Potassium is the dominant electrolyte inside your cells, essential for maintaining heart rhythm, enabling muscle contractions, and regulating fluid balance alongside sodium. Both high potassium (hyperkalemia) and low potassium (hypokalemia) can cause dangerous cardiac arrhythmias and require prompt attention — the therapeutic window is narrow. Abnormal potassium levels usually reflect kidney function issues, diuretic medication use, or hormonal conditions rather than dietary intake.