Supplements for Kidney Failure in Older Cats

Although kidney disease can occur in felines of any age, chronic kidney failure is more common in older cats. While there is no cure for chronic kidney failure in cats, it is treatable. In addition, certain supplements may help improve symptoms and quality of life.

  1. Omega-3 Fatty Acids

    • According to Shawn Messonnier, D.V.M., omega-3 fatty acids, particularly eicosapentaenoic acid (EPA) docosahexaenoic acid (DHA), improve blood circulation to the kidneys by stimulating the production of anti-inflammatory agents called prostaglandins. Supplementation with omega-3 fatty acids also provides the benefit of reducing serum cholesterol and triglycerides, which are typically elevated in cats with kidney failure. Messonnier recommends a dose of .5 to 1 gram of omega-3 for each 100 kcal (1,000 g calories) of food the cat eats each day.

    Probiotics

    • Probiotics are "friendly" bacteria that help to restore and maintain the ratio of "good" to harmful intestinal flora. The most common forms are lactic acid bacteria and bifidobacteria. Jean Hofve, D.V.M., notes that research has shown cats with chronic kidney failure that receive probiotics exhibit markedly lower levels of creatinine in their blood. This is significant because creatinine accumulation is a sign that the kidneys can no longer concentrate urine, which means water is no longer being conserved and toxins are no longer being filtered out. This condition, known as an azotemia, is what causes excess water consumption and urination.

    Potassium

    • Potassium deficiency frequently accompanies kidney failure in older cats, even if blood levels of this nutrient appear normal. Shawn Messonnier, D.V.M., says this is because blood tests for potassium do not accurately project the amounts of this mineral being utilized in cells, where it performs as an electrolyte and is used to maintain the balance of water. Messonnier recommends potassium chloride supplements.

    Astragalus

    • The herb astragalus (Astragalus membranaceus) is considered an adaptogen, meaning that it helps to protect the body from the effects of stress. Shawn Messonnier, D.V.M., says that astragalus helps treat feline kidney disease because it increases circulation to the kidneys and exerts a gentle diuretic effect.

    Antioxidants

    • Antioxidants, such as vitamins C, A and E, selenium and beta carotene are important to help reduce the harmful effects of free radicals and enhance immune system functioning.

    B Vitamins

    • One of the typical symptoms of kidney failure in older cats is loss of appetite. However, many veterinarians find that giving B complex vitamins, particularly thiamine and niacin, naturally stimulates appetite.