The Role of Potassium in Arterial Hypertension
Wojciech Wiśniewski
2026-03-18
6 min. read
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One of the fundamental dietary changes in the treatment of arterial hypertension is to limit the intake of salt, which is the main source of sodium in the diet. The guidelines also recommend increasing the consumption of products containing high amounts of potassium. What function does this nutrient perform in the body and how does it impact blood pressure values?
The physiological and biochemical significance of potassium in sustaining human bodily functions
Potassium serves as an indispensable regulator of bodily homeostasis, exerting its influence on both fluid balance—through precise modulation of cellular hydration—and acid-base equilibrium, thereby ensuring the constancy of blood pH levels and the optimal performance of all physiological systems. Beyond this, the electrolyte plays a pivotal role in neural impulse conduction, facilitating seamless interneuronal communication, as well as in the orchestration of muscular contractions—encompassing both skeletal muscles and the cardiac muscle (myocardium). Furthermore, potassium actively participates in the metabolic transformations of macronutrients, including carbohydrates and proteins, thereby sustaining foundational energetic and anabolic processes within the organism.
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