9 Ways to Improve Your Cat's Gut Health

Share This

From digestion to mental health, your cat's gut health affects almost every aspect of their health and happiness. Your cat has a unique collection of hundreds of different types of single-celled microorganisms (bacteria and other microbes) in its digestive tract, referred to as the gut microbiome. Gut bacteria are crucial for digestion and obtaining nutrients from the food your cat eats.

9 Ways to Improve Your Cat's Gut Health

We are seeing a rise in inflammatory diseases in both our pets and ourselves. Beneficial gut bacteria can be harmed by exposure to broad spectrum antibiotics, antimicrobials, food additives, medications, and more. When gut bacteria are out of balance, chronic diseases such as inflammatory bowel disease (IBD) may result. It’s more important now than ever to take care of our cats’ gut health. But how do we do this?

Below we’ve pulled together 9 ways to improve your cat’s gut health through nutritional changes, health interventions and environmental enrichment. Please check with your veterinarian when making changes to your cat’s diet and care as these suggestions are not intended to substitute for standard veterinary care.

Nutritional Changes

cat food and diet

#1 Diet

Because gut bacteria help your kitty digest food, the types of food your pet eats will influence which bacteria thrive in the gut. Cats eating high-carb food (ingredients like rice or potatoes) often have gut microbiomes with excessive amounts of carb-loving bacteria. Some of these bacteria have been linked with excessive inflammation, potentially resulting in health issues.

Cats are obligate carnivores, which means that for most cats, the best diet is high in protein and low in carbohydrates. Some cat parents even feed their pets exclusively raw meat, which maximizes protein content and minimizes carbohydrate content.

#2 Prebiotics

Prebiotics are special kinds of dietary fiber that promote the growth of healthy gut bacteria. Although many foods naturally contain these ingredients, some people supplement their cats’ diets with extra prebiotics. In mice, it has been observed that the microbiome shift induced by prebiotics can counteract inflammation caused by a high-fat diet. If you introduce prebiotics to your cat’s regimen, begin with small doses to see how your cat responds.

#3 Probiotics

Many cat parents administer probiotics that contain high quantities of live bacteria. However, because the bacteria in these probiotics were not isolated from cats (typically they contain strains of bacteria from soil), they will probably be out competed by bacteria living in your kitty’s gut.

Thus, these probiotic microbes generally do not become permanent residents in your kitty’s microbiome, which is why many probiotic users find the most benefit from daily supplementation. Because cats are carnivores with very acidic stomachs, far more acidic than humans or dogs, it is important to find a probiotic encased within an enteric-coated capsule, which will protect the bacteria inside from stomach acid and allow them to reach the intestines.

Medical Interventions

fecal microbiota transplant for cats

#4 Fecal Microbiota Transplant

Fecal Microbiota Transplant (FMT) moves beneficial gut bacteria from a healthy cat to a cat with an unhealthy microbiome. FMTs via enema are typically performed in a veterinary hospital under sedation using material that is not properly screened for pathogens; the procedure can be stressful for the cat and costly for the pet parent. AnimalBiome offers affordable oral FMT capsules that make this process a little easier to swallow. Our gut restoration supplement is designed for cats with health issues related to the microbiome, including digestive disorders, allergies, and skin issues. These fecal transplant capsules are more powerful than current probiotics and prescription diets because they contain thousands of beneficial bacteria found living in a healthy cat.

#5 Antibiotics

Not all bacteria are helpful members of your cat’s gut community. Sometimes your cat might have an infection or overgrowth of harmful bacteria that requires an intervention. Antibiotics kill their targets by inhibiting essential life functions of bacteria. However, most of these antibiotics are "broad-spectrum", meaning they will kill the harmful bacteria as well as eliminate some of the beneficial bacteria.

Antibiotics deplete the microbiome and can cause long-term changes to your cat’s gut health. However, antibiotics are an essential tool and may be absolutely necessary to help your kitty. Antibiotics can only be obtained with a prescription from a veterinarian, and you should use them exactly as instructed.

If your cat needs antibiotics, you might also consider supporting their microbiome during and after treatment with probiotics and you may also want to consider giving your cat an FMT afterwards in order to replace beneficial microbes that may have been lost as a result of the antibiotic treatment.

cats and dental health

#6 Dental Hygiene

When oral health is neglected, bacteria associated with chronic inflammation become more abundant in the mouth. These mouth dwelling bacteria don’t usually survive in the digestive tract, where they are typically outcompeted by bacteria already in residence. However, a recent study in mice suggests that bacteria such as Klebsiella that normally live in the mouth may contribute to gut diseases such as inflammatory bowel disease (IBD), ulcerative colitis and Crohn's disease. The study found that when certain strains of bacteria from the mouth make their way to the gut and settle down in the intestine, they can trigger chronic inflammation.

Once oral bacteria like Klebsiella colonize the gut, they may "help perpetuate gut microbiota dysbiosis [imbalance] and chronic inflammation." This may arise as an unintended consequence of treatment with antibiotics because some Klebsiella strains are resistant to antibiotics and may replace normal colon dwelling bacteria after antibiotic therapy.  

Brushing your cat’s teeth using a toothpaste designed for cats is the single best way to avoid this problem because it will reduce the abundance of bacteria like Klebsiella that are associated with chronic inflammation.

Environmental Enrichment

cat play and exercise

#7 Exercise

Over half of cats living in the US are overweight or obese. Obesity can have profound negative effects on their gut microbiome and, consequently, their overall health.

Kitties who are active have more Faecalibacterium living in their guts than less active cats, putting them at a decreased risk for developing chronic digestive diseases and even some types of cancer.

For indoor cats, it can be difficult to get them moving. You might try hiding pieces of their food around the house, so they have to “hunt” for their food; shining a laser pointer for them to chase; or even teaching your kitty to swim.

#8 Mental Stimulation

Gut bacteria can influence your cat’s mood, and it turns out that moods can also influence your cat’s microbiome. Stress has shown to shift the microbiome of humans and squirrels towards an unhealthy state. If your cat already suffers from digestive issues, stress can exacerbate the symptoms.

Mental stimulation is a great way to keep your cat’s attention on tasks rather than stress. To entertain your cat, you might offer new toys, put food into kitty food puzzles, or give treats in exchange for learning new tricks.

cat outdoors exposure to bacteria & microbes

#9 Exposure to the Outdoors

Bacteria that are potentially good for your cat are everywhere in nature: in the dirt, on plants and even in the air. If you live in a place where allowing your cat outside unsupervised is not safe, consider purchasing a cat-specific harness or building a catio onto your home.

Understand your cat’s gut health with microbiome testing

Knowing the composition of your cat’s microbiome will help you choose the best interventions for your kitty. If you properly address your cat’s low gut diversity or imbalance, it could help prevent disorders like inflammatory bowel disease in the future.

Our simple microbiome assessments will show you what types and proportions of bacteria are in your cat’s gut. We also provide online comparisons of your cat’s microbiome to other cats so that you can decide if your cat’s microbiome might benefit from an intervention. Learn more about our microbiome testing kits for cats.


We’d love to hear your comments or feedback. If you liked this article please consider sharing it.