Which mineral is critical for fluid balance and is often restricted in hypertension diets?

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Multiple Choice

Which mineral is critical for fluid balance and is often restricted in hypertension diets?

Explanation:
Sodium is the mineral most directly tied to fluid balance. It sits mainly in extracellular fluid and draws water with it, so when sodium intake is high, the body retains more water. This increases blood volume and can raise blood pressure, which is why sodium restriction is a common part of hypertension diets. Reducing sodium helps decrease fluid retention and lower BP. Potassium, calcium, and chloride each play important roles in physiology, but sodium’s direct effect on extracellular fluid volume makes it the primary focus for fluid-balance management in hypertension.

Sodium is the mineral most directly tied to fluid balance. It sits mainly in extracellular fluid and draws water with it, so when sodium intake is high, the body retains more water. This increases blood volume and can raise blood pressure, which is why sodium restriction is a common part of hypertension diets. Reducing sodium helps decrease fluid retention and lower BP. Potassium, calcium, and chloride each play important roles in physiology, but sodium’s direct effect on extracellular fluid volume makes it the primary focus for fluid-balance management in hypertension.

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