What is a key function of potassium in the body?

Potassium plays a crucial role in regulating blood pressure, making it essential for maintaining cardiovascular health. This mineral helps balance sodium levels in the body, which can have a direct impact on blood pressure. A higher potassium intake is associated with lower blood pressure, as it promotes the excretion of sodium through urine, which in turn helps to relax blood vessel walls. This regulatory mechanism is vital since high blood pressure is a significant risk factor for heart disease and stroke.

While potassium may have indirect roles in areas like digestion, bone health, and iron absorption, its primary and most impactful function is in blood pressure regulation. Understanding this function emphasizes the importance of potassium in dietary choices and its role in preventing hypertension-related health issues.