Feed a cat with diarrhea a bland diet of plain boiled chicken or white fish in small, frequent meals.
Watching your cat make repeated urgent trips to the litter box is worrying, and knowing what to feed a cat with diarrhea can feel like guesswork. The short answer is simple: offer small portions of plain, easily digestible food while keeping fresh water always available. Most mild cases clear up within a day or two, but choosing the right foods—and avoiding the wrong ones—makes a real difference in how fast your cat recovers.
The Best Foods For An Upset Stomach
Veterinary guidance consistently points to the same few foods when a cat’s digestive system needs a break. Plain boiled chicken breast and boiled white fish are the two most commonly recommended options, both cooked without salt, oil, or seasoning.
Other options that help settle a stomach include:
- Plain boiled chicken — shredded into small, bite-sized pieces
- Boiled white fish — cod or haddock, unseasoned and deboned
- Small amounts of white rice — mixed with the chicken or fish for extra binding
- Veterinary gastrointestinal diets — prescription “upset stomach” formulas from your vet are designed for exactly this situation
Offer small, frequent meals throughout the day rather than one or two large portions, which lets the digestive tract process food more gently.
What Foods To Avoid During Recovery
While your cat’s stomach settles, several foods that seem harmless can actually prolong the problem. Dairy is a common offender—most adult cats are lactose intolerant, and milk can make diarrhea worse. Treats, table scraps, and rich or fatty foods should also disappear completely until stools return to normal.
Avoid these until your cat recovers:
- Dairy products — milk, cheese, and yogurt
- Treats and table scraps — even ones your cat normally tolerates
- Rich or fatty foods — fatty meats, oils, and gravies
- Onions and garlic — toxic to cats in any form
- Sudden diet switches — introduce any new food gradually
PetMD’s cat diarrhea treatment guide notes that abrupt changes in diet rank among the most common triggers for digestive upset in the first place. When your cat’s stools firm up, transition back to their regular food gradually over a few days, mixing increasing amounts of the normal diet with the bland food.
Keeping Your Cat Hydrated
Diarrhea dehydrates cats quickly, and water loss is the biggest hidden danger in a mild case. Fresh, clean water must be available at all times, and you may notice your cat drinking more than usual—that is normal and healthy.
If your cat seems reluctant to drink, try offering water in a different bowl or moving it away from the food dish. Some cats drink more from a running faucet or a pet fountain, and wet food can contribute extra moisture to their daily intake.
When To Call The Vet
Not every case of cat diarrhea needs a vet visit, but several warning signs mean you should contact one promptly.
Seek veterinary care if your cat shows any of these signs:
- Diarrhea lasting beyond 24–48 hours without improvement
- Blood in the stool — fresh red blood or dark, tarry stools
- Vomiting alongside the diarrhea
- Refusing to eat for more than a day
- Marked lethargy or weakness
- Kittens or very young cats — these dehydrate faster and need faster intervention
Some cats should not be fasted at all. If the diarrhea is severe, bloody, or paired with the warning signs above, skip home treatment and call your veterinarian directly. For older cats dealing with chronic digestive issues, our tested roundup of cat foods for senior cats with diarrhea covers products designed for long-term management.
Once stools are solid for a full day, begin mixing in the regular food gradually across three to five days, and keep the bland food available as a fallback if symptoms return.
FAQs
How long should I keep my cat on a bland diet?
Keep your cat on the bland diet until stools have been solid for at least a full day. Then transition back to regular food gradually over three to five days. Returning too quickly can trigger a relapse, so patience during the transition matters as much as the bland diet itself.
Can I give my cat rice for diarrhea?
Yes, a small amount of plain white rice mixed with boiled chicken or fish can help firm up loose stools. Keep the rice unseasoned and well-cooked, and use it as a complement to the protein rather than the main ingredient. Too much rice can leave your cat feeling full without enough nutrition.
Is it safe to withhold food from a cat with diarrhea?
No. Unlike dogs, cats should not be fasted when they have diarrhea. Their bodies need steady nutrition, and kittens in particular can develop dangerously low blood sugar without regular food. Offer small, frequent meals of bland food instead of withholding food entirely.
References & Sources
- PetMD. “Cat Diarrhea: Causes and Treatment.” Covers bland diet recommendations and warning signs for veterinary care.
- PDSA. “Diarrhoea in Cats.” Explains why cats should not be fasted and lists symptoms requiring urgent veterinary attention.
- Vetster. “What to Feed a Cat with Diarrhea.” Details safe food options and the small-frequent-meal feeding pattern.