a cat chewing on plasticHave you had or do you have a cat who would eat anything – hair ties, ribbons, plastic – in addition to food? Have you experienced the anxiety waiting for your cat to pass whatever object you think he ate? It is not unheard of for cats to eat, chew or suck on non-food items. This behavior is called pica.  How do you manage the cat with pica?

The Bristol Cat Study (Animals 2021, 11(4), 1101; https://doi.org/10.3390/ani11041101) followed a group of cats for a little over 3 years.  To participate in the study, the owners had to own a kitten or kittens, 8-16 weeks old at the time of registration.

These owners were asked whether or not their cats chewed (with or without ingesting) one or more of the following items: 1) woolen fabrics 2) other fabrics 3) plastics 4) other materials. These questions were repeated at 2-4 months, 6.5-7 months, 12.5-13 months, and finally at 18.5-19 months.  About 25% of 2203 cats were reported to exhibit some pica behavior.


  • plastics were the most commonly targeted material
  • pica was most commonly reported at 6.5-7 months of age
  • about half of the cats reported to have pica at 6 months did not show pica at 18-19 months of age
  • cats who moved to a new house when they were around year old were more likely to have pica


Managing the cat with pica

Pica can result in GI injury, poisoning, or electric shock. The goal of managing pica is to prevent injury to the cat.

Step one: Identify the material being targeted

Yarn? Thread? Hair Ties?

  • yarn can wrap around the tongue
  • thread may have a sharp needle attached
  • hair ties


  • Household chemicals: cleaners, antifreeze, insecticides, plant sprays
  • House Plants: can be toxic – lilies in particular can cause kidney damage even in small amounts


  • Filmy plastics and things like “fabric softener sheets”
  • Chewing/biting electrical cords
  • Kneading and sucking on blankets
  • Chewing or sucking on toys

Step two: Keep targeted items out of reach of the cat with pica

  • keep blankets and other fabrics in closets your cat can’t get into
  • put hair ties and elastics away
  • replace toys your cat may be eating with ones that he can’t eat
  • supervise play times and access to toys
  • cover electrical cords with plastic covers that cats can’t bite through
  • unplug unused appliances
  • discard or hang houseplants
  • store household chemicals in a secure closet

Step three: Provide the cat with pica an alternative behavior

We would like to provide Kitty with an outlet for her oral activities and provide something safe for her to interact with.

Cat using food puzzleKeeping kitty busy

Try “free feeding” your cat with pica if possible. If “free-feeding” is not an option, frequent small meals will work. Food puzzles offer a natural cat behavior (foraging) as well as a snack. For some ideas, visit foodpuzzlesforcats.com.

Licking – a soothing behavior for cats

Slow-feeding mats are textured silicone mats that you spread canned food on. The cat licks the food off much like a wild cat may lick meat off a bone. Licking appears to be calming and soothing to cats. Some cats may like licking toys or balls made from compressed catnip.


There are silicone toys that can be filled with catnip or silver vine (see the PetZone Boredom Buster dental chew toy). There is also a gum stimulator on the Catit Wellness Center that is designed to be chewed and sucked on. If you try these, be sure to monitor the wear on them and be around to supervise your kitty with these.

Cat Grass

Cats are attracted to grass and like to chew on it. There is the grass sold at pet stores and seeds you can plant. Some varieties of ornamental grasses are non-toxic to cats. Make sure to check the ASPCA site to make sure that the plants you choose are safe.

Step four: reducing stress in the cat with pica

Stress can stimulate an increase in pica behaviors, especially as cats grow out of the kitten stage. Identify and reduce stress whenever possible.

Social stress: 

  • How does the cat with pica get along with other pets in the household?
  • Do neighborhood cats come to the windows?
  • Are interactions with humans

Environmental stress:

Managing the cat with pica can be challenging.  Although the Bristol Cat Study indicated that half the cats who had been reported with pica at 6 months were no longer chewing/ingesting things at 18 months, it is wise to monitor your cat for such behavior, even if it seems to have gone away. Providing cats with safe opportunities to lick and chew is key to having a happy and healthy cat.

Your veterinary team is an important resource if you suspect your cat has pica. GI distress, oral pain and neurological issues can sometimes exacerbate pica and are best treated.

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