What to Feed Cats That Have Chronic Diarrhea

Chronic diarrhea in cats is caused by problems in the animal's intestinal tract. It is important to properly diagnose the intestinal problem to know which type of diet is best for your pet. In addition, an underlying problem may exist that requires treatment other than a change in diet.

  1. Determine the Cause

    • Cats with chronic diarrhea can have problems with the large or small intestine that cause them to pass loose or liquid stools. The best way to properly diagnose the source of the diarrhea is to have an examination done by your veterinarian. Before discussing your cat's problem with your veterinarian, monitor your cat's bowel movements to accurately answer any questions your vet might have.
      Small intestinal problems will cause cats to have a larger amount of stool passed each time, with a slight increase in frequency to three to five bowel movements a day. Diseases of the small intestine also can cause vomiting and weight loss, so watch for these symptoms as well. If there is blood in the stool, it is black and tarry.
      Diseases of the large intestine cause the cat to pass small amounts of stool in more than five bowel movements a day. The pet strains to pass the stool and if blood is present, it is red in color. The stool may also appear slimy or have mucus.
      In addition to asking about your cat's bowel movements, your veterinarian will also conduct tests to determine the exact cause of the diarrhea.

    Changing the Diet

    • The change in your cat's diet will be dependent on the cause of its diarrhea. If small intestinal disease is the cause of your cat's chronic diarrhea, your veterinarian will probably recommend a hypoallergenic food. In some cases, withholding food from your pet for 24 to 48 hours will end the diarrhea. If that is the case, you can start feeding your cat bland, low-fat food three to six times a day and gradually increase the portions over time. If the disease has been treated, you can often incorporate the animal's regular diet into this ration and gradually return to normal feeding.
      Diarrhea caused by large intestine problems can sometimes be managed by feeding a special high-fiber diet. This is a nonspecific treatment though, and should only be used for management until you can have a full examination by a veterinarian. If a more serious problem is causing the diarrhea, a change in diet may not be enough to correct the problem.