Also known as: Potassium Citrate, Potassium Chloride
Potassium is an essential macromineral and electrolyte that regulates fluid balance, nerve transmission, and muscle contraction. Adequate intake is strongly associated with lower blood pressure and reduced stroke risk.
Potassium is the most abundant intracellular cation in the human body, with approximately 98% found inside cells. It is critical for maintaining cell membrane potential, which drives nerve impulse transmission, muscle contraction (including cardiac rhythm), and fluid-electrolyte balance. The adequate intake (AI) for adults is 2.600 mg/day for women and 3.400 mg/day for men, yet most populations fall significantly short. The DASH diet trials demonstrated that potassium-rich diets lower blood pressure comparably to first-line antihypertensive drugs. Supplementation with potassium citrate or chloride can be beneficial for blood pressure management, but doses above 99 mg per tablet are restricted in the US due to risk of hyperkalemia, particularly in individuals with kidney impairment.
Meta-analyses show that increased potassium intake reduces systolic blood pressure by 3–5 mmHg in hypertensive individuals, primarily by promoting sodium excretion and vasodilation.
A WHO-commissioned meta-analysis found that higher potassium intake is associated with a 24% lower risk of stroke, independent of blood pressure effects.
Potassium maintains the electrochemical gradient across cell membranes essential for proper nerve signaling and skeletal/cardiac muscle contraction.
Divided into 2–3 doses with meals
Kidney function should be assessed before supplementation. Individuals on ACE inhibitors or ARBs need medical monitoring.
Blood pressure and kidney stone prevention
Correcting hypokalemia
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