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Sodium and hypertension

Salt

Essential mineral compound composed of sodium and chloride, critical for health but requiring moderate intake.

Definition

Sodium chloride (NaCl), a mineral compound essential for bodily functions but often consumed in excess in modern diets. It is the primary dietary source of sodium.

How it works

Salt is a naturally occurring mineral that plays crucial roles in regulating fluid balance, nerve function, and muscle contraction. However, excessive salt consumption has been linked to elevated blood pressure and increased cardiovascular disease risk. The human body requires only about 500 mg of sodium daily, but most people consume significantly more. Salt enhances food flavoring, which is why it is widely used in food processing and cooking. Understanding salt content in foods is fundamental to managing sodium intake.

Role

Regulates fluid balance, supports nerve transmission, and facilitates muscle contraction while maintaining proper blood pressure.

Examples

  • Table salt
  • Sea salt
  • Himalayan salt
  • Rock salt
  • Kosher salt

Recommendations

Limit daily salt intake to less than 5-6 grams (1 teaspoon) according to WHO guidelines. Read food labels to identify hidden salt sources. Choose fresh foods over processed alternatives whenever possible.

Key takeaway

While salt is essential for body function, excessive intake is a major risk factor for hypertension and should be carefully monitored.

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