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Cats and Dietary Sodium

Xu, H., D.P.L. Laflamme, and G.L. Long, Effects of dietary sodium chloride on health parameters in mature cats. Journal of Feline Medicine & Surgery, 2009. 11(6): p. 435-441.

High sodium diets are often used for cats to increase water intake and urine output, both beneficial goals for treatment of lower urinary tract disease. A study published in 2006 suggested that increased dietary sodium might have adverse effects on the kidneys. The objective of this controlled, prospective study was to evaluate the effect of different salt contents in diets fed to mature cats for a period of 6 months. No adverse effects were noted, including effects on food intake, body weight, hydration, blood pressure, and kidney function. These results are consistent with the majority of other studies which indicate that sodium at 1.5% of the diet (DM) is not harmful to healthy cats. [SL]
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Related articles:
Kirk, C.A., D.E. Jewell, and S.R. Lowry, Effects of sodium chloride on selected parameters in cats. Vet Ther, 2006. 7(4): p. 333-46.
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Luckschander, N., et al., Dietary NaCl does not affect blood pressure in healthy cats. J Vet Intern Med, 2004. 18(4): p. 463-467.
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