Sodium is an essential nutrient predominantly involved with fluid and electrolyte balance in the body.  Blood pressure and sodium concentration in the blood are controlled by the renin-angiotensin system.  Excessive sodium intake has been linked to hypertension.

A little background information

Sodium is a major mineral element, an alkaline metal, that nutritionists call a mineral macro element due to the large amounts needed by the body.

Its role in the body

Sodium regulates water balance: sensation of thirst or urinary elimination. Its role is very closely linked to that of potassium. The simplest way to prevent the formation of urinary stones in cats is to encourage the animal to drink. Slightly increasing the sodium chloride content in the food encourages the consumption of water and stimulates urine output.

Natural sources

The sodium needed by the animal is provided through sodium chloride (kitchen salt or NaCl), of mineral or marine origin, which contains 39% sodium and 61% chloride. Increasing the NaCl content in a food by 2.5% represents a 1% increase in the sodium content.

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