Best Cat Food For Diarrhea

How To Choose The Best Cat Food For Diarrhea

Cleaning up your cat's mess every day isn’t the most fun, and if you’ve come home after a long day at work, the last thing you want to do is find one of your cat’s ‘presents’ on the floor.

And yes, I get the feeling of having to mop up and clean that smelly mess! I'm okay with firm stool, but when it comes to diarrhea, it isn't only unhealthy for the cat, but a burden to me as well.

So if your cat is suffering from constant diarrhea from poor digestion, there is a solution – specialized cat food. Here’s how you can choose the best cat food for diarrhea.

**Below, you'll find more detailed review, but you can also click links above to see current prices and read customer's reviews on Amazon.

Why Does My Cat Have Diarrhea?

best cat food for diarrhea

You’ve probably experienced your cat having a very wet stool, and it’s no laughing matter! But why does it happen in the first place? There are several things that could cause diarrhea in cats, either mild and changeable, or serious and will require medical attention.

  • Irritable Bowel Syndrome or Irritable Bowel Disorder
  • A change in diet
  • Eating too much human food (whether given by you or stolen off of the counter)
  • Eating grass or bugs outside
  • Eating dairy
  • Eating chocolate (please note, chocolate can be fatal for cats!)
  • Internal parasites such as roundworm or ringworm
  • Cancer
  • Medication
  • Allergic reaction
  • Bacterial infection

While some of these reasons made me worry and fear for the hefty price tags on vet visits and medicine, there's nothing to worry about.

You can treat your cat's diarrhea and poor digestion through feeding him the RIGHT cat food that aids in better digestive health without the artificial ingredients.

While you can't always control what your cat eats (especially when he's sneaky like mine!), you can still make the correct changes and relieve his digestion health and stool through changing his diet in a more positive note.

Get Professional Advice

best cat food for diarrhea

Remember that while giving them better food choices is always an ideal option, don’t forget to talk about it with a veterinarian. If your cat seems sick or uncomfortable while having diarrhea, take them immediately to your veterinarian for professional advice.

Your vet can tell a lot just from a physical examination; however, they may order x-rays and blood tests as well if they deem it necessary.

Never try to self-diagnose, no matter how likely you think you are to be right, or how long you’ve owned cats.

Chances are you know your cat better than anyone else, but to protect their health for as long as possible, regular visits to the vet are imperative to your cat’s well-being; and that means taking care of them in emergency situations as well.

What To Look For In Cat Food for Diarrhea

While it’s important to buy quality cat food for all cats, if yours has digestion problems, there are certain things you should look for in the ingredients. Here are a few things to consider:

​1. Go organic

Many cat food brands are manufactured in a factory with ingredients that are less than natural (in fact, the same could be said about our human food!) Foods known as GMO’s (Genetically Modified Organisms) can wreak havoc on our bodies, and cats are no different.

These ingredients are foreign to the digestive system, and as such, don’t get digested properly. If you can’t pronounce an ingredient it’s probably best left on the shelf. So if possible, go natural and organic.

I urge you to purchase cat food specialized for diarrhea because feeding your cat RAW (different from organic) will end up messing up his digestive system even more!

2. Grain-Free and More Protein

Just like humans, protein is an absolute necessity for cats to continue to grow healthily. Not only will they have the healthy bones and muscles, but protein is easily digestible and will pass through their systems without any trouble.

Studies have also shown that feeding your cat a grain-free diet with high protein consumption will vastly improve their bowels, especially those who suffer from IBD.

Also, take note that cats who have diets higher in fat may suffer from colitis, which is damage of the intestine that causes diarrhea. Focus on low-fat diets and more on protein.

3. Plenty of Essential Nutrients

Protein may be the most important ingredient, but it’s not the only one they need. Vitamins like A, C and E will ensure they have the proper digestion to let him poo healthily.

Two most important nutrients needed to help your cat’s digestion would be fiber and probiotics. These are known to help your cat digest his food better and allow his stool to come out smoothly, without the diarrhea or discomfort.

4. Look for foods with less ingredients

When reading the ingredient list, you shouldn’t feel as though you’re reading a novel. The best food lists only a handful of wholesome ingredients. That’s all that’s needed to keep your cat happy and healthy.

The less ingredients, the less likely your cat would have any food intolerance that can cause diarrhea.

Does all of this sound familiar? The recommended diet for cats is also very close to our own diet recommendations from health experts! Just like us, our cats have to eat natural food filled with the nutrition he needs.

While it may be a bit different to what our body requires, it all boils down to natural and vitamin-rich food.

Tips on How to Feed Your Cat Right to Remedy Diarrhea

Besides feeding your cat the proper food specialized to treat digestion and diarrhea, follow these tips to relieve his loose stools:​

  • While feeding your cat wet food for diarrhea is completely fine, it’s recommended to feed him dry food, as it will be absorbed in your cat’s digestive system easily and reduce diarrhea.

  • Avoid giving your cat any “human treats”. Instead, opt for charcoal-activated treats and fiber supplements to help him get things going. Let him stay within his diet, avoiding foreign food at all costs.

  • Focus on his water intake as well. While your cat has diarrhea, it may dehydrate him. Make sure he’s quenched with the clean water he needs.The cleanliness of water is critical as well, since contaminated water also causes diarrhea.

    If you are traveling with your pet, be sure to pack bottled water for his sensitive stomach, as well as his cat food to soothe the digestion and diarrhea.

  • Timing of his meals is also important. Instead of giving your cat one very large meal per day, opt to give him three smaller meals for him to easily digest and excrete it out. Sometimes, diarrhea from overeating comes in the form of very large amounts of wet poo!

The Top Five Best Cat Foods for Diarrhea

Based on my research and tests with my own cat, as well as other customers’ point of views, here are the top five best cat foods for diarrhea:

**Below, you'll find more detailed review, but you can also click links above to see current prices and read customer's reviews on Amazon.

1. Royal Canin Veterinary Diet Gastrointestinal Fiber Response Dry Cat Food

Royal Canin is one of the most reputable and trusted brands for cat products, and if you're looking for something your cat will love and stay healthy with, then this is it.

I love the fact that it comes with the natural ingredients filled with the essential vitamins and minerals my cat needs for proper defecation and digestion.

It has probiotics and the digestible proteins for him to stay healthy and strong, as well as to ease the strain of his digestive system when filtering out bacteria and such.


  • High in probiotics and digestible protein
  • Contains all natural ingredients with added vitamins and minerals
  • No artificial colors, flavors or preservatives
  • Helps my cat poo properly and without feeling any stomach discomfort
  • Helps with both diarrhea and constipation- Your cat will have a healthy stool daily, removing all toxins from his body
  • Palatable and cats will love the taste
  • Ideal for sensitive stomachs and for cats who suffer from digestion conditions


  • Ideal for adult cats only, not for kitten consumption
  • No canned food variety for cats who have trouble chewing
  • More expensive than any other cat food, but worth the investment

2. Royal Canin Feline Health Nutrition

Royal Canin is a well-known brand for cat products, and this one holds no exception. What makes this dry food a hit for cats is that it targets sensitive digestion, with the balanced sources of fiber which helps support digestion and healthy urinary functions.

So if your cat seems unhealthy because of the poor absorption of nutrients, his cat food will be able to help keep his whole body working properly and without fail.

With its specially formulated and digestible proteins, it won't only increase nutrient absorption and digestion, but prevent soft stools such as diarrhea. Plus, it's a tasty treat cats will appreciate. My cat surely does!


  • Each serving contains added vitamins and minerals for maximum health support
  • Has the right amount of fiber and digestible proteins for better digestion and nutrient absorption
  • Focuses on preventing soft stools due to indigestion. Also prevents throwing up
  • Highly palatable and with distinct kibble shapes to stimulate and satisfy a cat's appetite
  • Comes in different sizes and packages for affordability and to measure frequency of meals


  • Dry kibbles might not be suitable for older cats who have trouble chewing
  • Only good for adult cats, no variety for kittens
  • Some cats MAY shed more as compared to eating other food, but still bearable

3. Hill's Science Diet Indoor Dry Cat Food

What sets this cat food apart is that it comes in a variety of sizes and great for any age, may they be kittens, adults, or even senior cats! You can even choose the canned food for cats who have trouble chewing.

This cat food has the healthy and gentle digestion designed to give your cat the firm and comfortable stools he really should have.

Not only does it stop indigestion, but diarrhea and soft stools as well. It prevents dehydration with its natural ingredients and added vitamins, minerals, and amino acids.

They use a formula clinically proven to give the desired effects. Filled with antioxidants and without any artificial ingredients, it's definitely worth the purchase.


  • Comes in both canned or dry food variety, suitable for all ages and with different sizes available
  • Natural ingredients filled with essential vitamins and minerals, along with amino acids and antioxidants for a better stool
  • Helps improve digestion and make it gentle and healthy to prevent diarrhea
  • No artificial ingredients included
  • Comes with a money back guarantee
  • Gives your cat a sleeker coat and healthier look
  • Highly palatable and cats love the taste


  • Kibbles from the 15-pound size bag might be too big or hard to chew for older cats
  • Not as inexpensive as other cat food products

4. Tiki Pet Foods Cat Canned Cat Food

What makes this cat food unique is that it is advertised as ‘human grade’ meaning that it is safe for human consumption. While I won't need to worry about consuming it, it's beneficial just in case I do accidentally eat a bit!

Anyway, whether you’d actually want to eat it is a whole other story, which won’t be discussed here!

This is one of the most ‘natural’ cat foods on the market today and comes in a variety of flavors like chicken, tuna, sardines and even lobster! I love the fact that it's gluten-free, making it even better for cats with sensitive digestion.

It really does make my cat keep his food down and come out as a firm poo without worry of cleanup or dehydration from diarrhea.

Another feature of this brand is that you can actually see the shreds of meat and fish in the can, which is definitely a rarity with pet foods.


  • Free from chemicals and additives, also safe for gluten-sensitive cats
  • There are no fillers in this food, including grains, corn, gluten or fruits or vegetables
  • Contains only the protein and broth (for example, chicken and chicken broth) and the necessary vitamins, EFA’s and minerals to keep their bodies healthy and lean.
  • Does not contain carbs, which is an important consideration if your cat is overweight
  • Palatable for both indoor and outdoor cats
  • Gives a healthy coat and prevents itching


  • Can be difficult to find in stores if you’re not located in North America; however, it is readily available online.
  • Wet food won't last very long if using an automatic cat feeder
  • Some flavors have strong odors

5. Nature's Variety Pride Instinct Grain-Free Flaked Canned Cat Food

These come in 5.5 oz. serving sizes, and you can buy in cases of 12, making it more convenient; buying in bulk is an ideal option for almost anything that has a long expiration date, or even better, no expiration date at all.

There are six flavor choices, including chicken, turkey, lamb, and salmon. You’re sure to find a flavor that your cat loves, although you may have to experiment to find their favorite one.

The Instinct brand is the official partner of Best Friends Animal Society. As an official pet food partner, they provide more than one million meals of Instinct to adoption centers across the country.

This alone is a great reason to purchase this cat food – you’ll not only be helping your own feline, you’ll be helping others while they try to find permanent homes.


  • High in protein
  • Free from grain and gluten
  • Made with all natural ingredients with added vitamins and minerals
  • Contains Omega and Essential fatty acids to keep their coats healthy and shiny
  • Many flavors to choose from and your cat will love them
  • Easy for sensitive tummies to digest and prevents soft stool or diarrhea
  • No bones where your cat might choke from or have a hard time digesting


  • More ideal for indoor cats rather than those who live outdoors
  • Some picky cats may not eat all of the food- just the gravy area
  • There is more liquid gravy than chunks from the new formula


So, who is the clear winner here? For me and my cat, who is a strictly indoor cat, and suffers from IBS, I like the Royal Canin Veterinary Diet Gastrointestinal Fiber Response Dry Cat Food.

I have an automatic feeder and this is very easy to fill, without worrying about wet food going bad (I’m away for 12 hours a day, sometimes more).

I love that it’s made with wholesome ingredients and my cat’s IBS symptoms are less severe than they were before. It took a few weeks to notice a difference in her digestive system, but she seems to be doing quite well. She is a finicky eater, and she loves the flavor it brings.

Plus, with its fibers and boosted probiotics and amino acids, I won't need to worry about her digestive system anymore. A huge plus is the healthy coating she has. While it may be a bit expensive, it's definitely worth the investment.

All of the above foods are made with only the finest ingredients and can help with digestion. They make a great alternative to general store-bought brands that are made with GMO or other ingredients that are considered unhealthy.

But which one will your cat continue to eat? That’s impossible to say – you may have to try a couple of different brands before you find the one that your cat loves the most. Your cat will tell you which brand she likes best!

What has been your experience with these brands? Is there a brand that your cat loves best? How do you deal with your cat’s digestive issues?

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