
Cats who eat non-food items have Pica, a compulsion to eat things not meant to be food. Pica occurs in some humans, a few dogs, and more often in cats. According to the American Animal Hospital Association, Oriental breeds -- such as Siamese -- are particularly prone to Pica. This phenomenon is not just peculiar, it can be dangerous given the variety of things that can be ingested by the compulsive animal. Fibers, string and fabrics can cause blockages. Cats who chew on power cords are apt to be electrocuted and household plants can be toxic. For the cat with Pica, danger really does lurk everywhere. Pica can be caused by a dietary deficiency, stress, anxiety, boredom or illness -- and sometimes a combination of these things. Some even think early weaning of kittens can lead to Pica. If your cat has an ongoing habit of eating the unedible, experts at the Veterinary Medical Teaching Hospital at UC Davis have some solid solutions that may curb your cat's Pica behaviors. These should be discussed with your veterinarian, who will first try to rule out any medical reason for your cat's behavior. Once that is done, he or she may suggest the following:
Remove targeted items - Placing clothing, blankets, houseplants and electric cords out of the reach of your cat is often the easiest solution. Storage containers, electric cord guards, and other useful items are available at most home supply stores.
Provide alternative items to chew or eat - Food-dispensing toys, durable cat toys, or pieces of rawhide can be used to redirect your cat's chewing behavior to more appropriate and safe items (see handout). For cats attracted to houseplants, small flowerpots of grass or catnip can be planted and kept indoors. Birdfeed can be used as a safe source of plant seed.
Provide lots of structured play - Many cats chew on household items out of boredom. Provide interactive toys and set aside time each day to play with your cat.
Increase dietary fiber - It may help to increase the amount of fiber in your cat's diet. Besides providing more dietary fiber, high fiber foods usually contain fewer calories. Your cat may be able to satisfy their craving to eat more while still maintaining their weight. Consult with your veterinarian before making any changes to your cat's diet.
Make targeted items aversive - Occasionally, applying aversive substances (e.g. hot sauce, Bitter Apple®, Bandguard®) to an item may deter a cat from chewing it. If this is not possible, spraying strong smelling substances (e.g. citrus air freshener, potpourri) or using physical deterrents (e.g. upside down carpet runner, Ssscat®, Snappy Trainers®) around an object may prevent cats from approaching.
Consult with a veterinary behaviorist - If your cat continues to ingest non-food items, referral to a veterinary behaviorist is recommended. Further environmental and behavior modification plans, specifically tailored to your pet, may be needed. In some cases, medication may be helpful.