Cat Has Diarrhea? What to Feed (and the Boiled-Chicken Trick, Done Right)

Use this as a quick reference, then read the detail below.

Feeding a young kitten? Read our kitten feeding guide for how much and how often by age.

A cat with diarrhea is stressful — for them and for you. The good news is that most mild, short-lived tummy upsets settle within a day or two with the right gentle food and a little care at home. This guide walks you through exactly what to feed, what to avoid, and the clear signs that mean it’s time to call your vet.

First, the important line: diarrhea has many causes — from a sudden food change to parasites, infections, or a more serious illness. This article is about supportive feeding for a mild, otherwise-healthy cat. It is not a substitute for veterinary care. If your cat is a kitten, elderly, or showing the warning signs near the end of this guide, call your vet first.

When a cat’s stomach is upset, the goal is to give the gut a rest with food that’s easy to digest, low in fat, and free of anything rich or unfamiliar. For generations, vets and owners have reached for the same simple answer: plain, gently cooked chicken.

A small amount of plain boiled or gently cooked chicken — no salt, no oil, no spices, no onion or garlic (those are toxic to cats) — is gentle, highly digestible, and tempting even for a queasy cat. A little plain chicken bone broth alongside it adds moisture and encourages a reluctant cat to take something in.

This is exactly the principle Soluky fresh meals and bone broth are built on: real, single-protein, gently cooked food with no fillers or additives — the “bland diet” approach, made consistent and convenient instead of cooked from scratch each time.

Here’s a simple way to feed through a mild upset:

• Offer small amounts, often. A few small servings through the day are gentler than one big bowl.
• Keep it plain and single-protein. Gently cooked chicken, or a simple single-protein fresh meal. Nothing rich, fatty, dairy, or seasoned.
• Add moisture. Diarrhea is dehydrating — plain bone broth or the moisture in fresh food helps your cat keep fluids in.
• Always provide fresh water.
• Reintroduce normal food gradually once stools firm up — mix the bland food with their usual meals over 2–3 days rather than switching back all at once.

Some foods make an upset stomach worse — keep these away while your cat recovers (and ideally always):

• Cow’s milk and dairy. Most adult cats are lactose intolerant — milk is a common cause of diarrhea, not a cure.
• Fatty, fried or seasoned human food. Too rich for a settling gut.
• Onion, garlic and chives. Toxic to cats — never include them in home-cooked food.
• Sudden diet changes. Switching food too fast is itself a frequent cause of loose stools.

If you do feed home-cooked food, keep it simple and single-protein — and remember that long-term, a home-cooked diet needs to be properly balanced. (More on that in our guide to natural ingredients for sensitive-stomach cats.)

Most mild diarrhea improves within 24–48 hours. Call your vet promptly if you see any of these:

• Diarrhea lasting more than 2 days, or that keeps coming back
• Blood in the stool, or black, tarry stools
• Repeated vomiting alongside the diarrhea
• Signs of dehydration — lethargy, sunken eyes, dry gums, skin that’s slow to spring back
• Your cat won’t eat or drink at all, or seems painful or distressed
• A kitten, senior, or already-unwell cat — these need vet attention sooner, not later

These conditions need veterinary diagnosis and care — when in doubt, call your vet. Supportive feeding helps a mild upset; it doesn’t replace treatment for the cause.

For a healthy cat with a mild, passing upset, the answer is reassuringly simple: rest the gut, feed small amounts of plain gently cooked chicken with a little broth for moisture, skip the dairy and rich foods, and ease back to normal slowly.

If your cat does better on gentle, single-protein food — and many sensitive cats do — Soluky makes that the everyday norm instead of an occasional rescue meal. Build your box of fresh, single-protein meals, or add a bone broth for easy moisture and tempting flavour. Subscribe and save 15% on every order.

Kittens are not small cats when it comes to diarrhea: they dehydrate dangerously fast, sometimes within hours, and they have almost no reserves. So the rule changes. For a kitten, especially under 12 weeks, call your vet the same day rather than trying home management first.

While you arrange that visit: keep water available at all times, offer tiny portions of plain boiled chicken shredded very fine (or their usual kitten food, softened) every few hours, and never give milk, which makes diarrhea worse. Do not fast a kitten. If your kitten is lethargic, refusing food, or the diarrhea is watery or bloody, treat it as urgent.

Diarrhea with vomiting is a different situation from diarrhea alone, because fluid is being lost from both ends and dehydration arrives twice as fast.

Let the stomach settle for two to three hours after vomiting, offering small sips of water rather than a full bowl. Then try a spoonful of the same bland food described above. Important for cats specifically: unlike dogs, cats should not go unfed for long periods, so do not withhold food beyond a few hours without asking your vet. See a vet the same day if the vomiting repeats, if there is blood in either direction, if your cat is lethargic or hiding, or if you suspect she ate something she should not have.

A nursing cat with diarrhea needs a different approach again, because she is feeding a litter on top of herself. Her calorie and fluid needs are at the highest point of her life, so restricting her food is the wrong move.

Keep her eating: frequent small meals of bland, high-quality protein, plus extra fluids. A plain meat broth made for pets is genuinely useful here, since her milk supply depends on hydration. And involve your vet promptly rather than waiting it out: digestive upsets after birth commonly involve parasites, and treatment has to be chosen with the kittens in mind.