The Best Food for Cats With Kidney Failure

By Faith McGee

Cats with chronic renal failure can no longer easily dispose of waste or regulate electrolytes. Essentially, the built-up waste products begin to poison the cat. Diet can play a huge role in helping the kidneys effectively filter this waste.


Renal failure causes excessive thirst, frequent urination, lack of appetite, poor coat, constipation, muscle loss, and dehydration. Foods must be specially prepared to combat these problems.


Food that is low in protein, salt, and phosphorus is prescribed for cats with kidney problems. The food's main functions are to reduce the amount of poisonous waste materials and restore electrolyte function. Many cats will not like the food change. If your cat refuses to eat the new food, then mix it with its old brand. Slowly, change the proportions of the two until the cat is eating predominately the new diet. Sprinkling cat treats in with the new food may also help the cat accept it. Do not mix in human food. Cats are fatally allergic to a wide host of foods that humans eat. If your cat refuses to eat, call a veterinarian.


Water is essential to the health of a cat. Cats with chronic renal failure must have access to fresh water. Place several bowls in different locations. Use clean bottled or filtered water and change it every day because it can attract dust, bacteria, and insects. Wash out each bowl before adding more water. Water can be at room temperature, but cats with renal failure prefer cold. Monitor your cat before changing the water temperature. Do not let your cat drink from the toilet. There could be potentially fatal toxins and bacteria lurking in the toilet bowel. If your cat ilikes to drink toilet or bath water, close the door to the bathroom.

Spending Time with Your Pet

It is devastating for any pet owner to find out that a cat is having kidney failure. Your pet will feel better if you spend quality time with it. While it is hard to judge how the cat is feeling, the comfort and care you show will help it through these hard times.