As lucky as we are to parent our fluffy family members, it isn’t a job that comes without some pretty gross cleanups, smells, and, of course, worry. If your cat has a sensitive stomach, they may suffer from diarrhea among other symptoms when they eat certain foods.¹

If you’re not sure what’s causing your cat to have frequent diarrhea, we suggest talking things through with your vet, who will also be able to recommend suitable cat food for their needs. Just because a product has great reviews and works for most cats doesn’t necessarily mean it will sit well with yours.

Meanwhile, these reviews share our top picks of best cat foods for diarrhea in Canada, which may help clear up your cat’s upset stomach.

A Quick Look at Our Favorites in 2026

	Image	Product	Details
Best Overall		Hill’s Science Diet Perfect Digestion Adult	Supports digestive health Supports healthy stools and regularity Made with real salmon	CHECK PRICE
Best Value		Blue Buffalo Sensitive Stomach Cat Food	Made with real chicken Rich in antioxidants, vitamins, and minerals A variety of bag sizes	CHECK PRICE
Premium Choice		Hill’s Science Diet Sensitive Stomach & Skin	Contains added prebiotic fiber for gut health Easy to digest May help with sensitive skin issues	CHECK PRICE
		Blue Buffalo Wilderness Grain-Free Kitten Food	Supports overall kitten health and development Made with real chicken High in protein	CHECK PRICE
		Purina Pro Plan Sensitive Skin & Stomach Formula Adult Cat Food	Gentle on the digestive system Made with real lamb Contains live probiotics	CHECK PRICE

The 9 Best Cat Foods for Diarrhea in Canada

1. Hill’s Science Diet Perfect Digestion Adult Cat Food – Best Overall

The overall best cat food for diarrhea in Canada is Hill’s Science Diet’s Perfect Digestion formula. The first ingredient is real salmon—a great source of protein and omega fatty acids. This formula is designed to help with digestion, so it contains ActivBiome+, which is a special blend made up of prebiotics, whole grain, and pumpkin to support gut health.

This recipe also targets stool quality and regularity, so it’s definitely worth considering if your cat has issues in the poop department. The majority of reviews are positive, with improvements in digestive issues like vomiting and diarrhea noted by many reviewers. Some users feel it’s too expensive, though, and some cats didn’t enjoy it, but this is pretty normal.

2. Blue Buffalo Sensitive Stomach – Best Value

This Sensitive Stomach Formula by Blue Buffalo is the best cat food for diarrhea for the money. Blue Buffalo is far from the cheapest brand, but it’s not as expensive as some others and uses high-quality ingredients like real deboned chicken, which is why we consider this a good value pick.

As well as deboned chicken, this recipe contains a variety of fruits and vegetables like blueberries and sweet potatoes for an antioxidant boost. It also contains prebiotics and oatmeal, which is gentle on the digestive system.

Many users have been impressed by this Blue Buffalo recipe, with several citing reduced vomiting and diarrhea as a major benefit. It didn’t suit every cat, though, and some users consider the kibble size to be too small.

3. Hill’s Science Diet Sensitive Stomach & Skin – Premium Choice

Our premium cat food for diarrhea pick is the Hill’s Science Diet Sensitive Skin & Stomach recipe. With real chicken as the first ingredient and added FOS—a prebiotic fiber—this recipe was specially formulated to go easy on sensitive cats’ stomachs and skin.

In addition, it contains vitamin E, which is an essential nutrient for cats, and omega-6 to nourish your cat’s coat and skin. The benefits of this recipe mentioned by users include reduced coat licking, better stool quality, and better coat condition. Some users mention a possible formula change that they’re not keen on, though, and it didn’t sit well with or work at all for some cats.

4. Blue Buffalo Grain-Free Kitten Food

As kittens are still developing, their tummies can be a bit sensitive to certain foods, which is why it’s important to go with a high-quality brand. For kittens, we recommend this Blue Buffalo Wilderness chicken recipe. It’s made with real chicken and is high in protein at 40% to support your kitten’s developing muscles. It also targets overall health and development, including the immune system, eyes, brain, skin, and coat.

Some users also recommend this recipe for kitties prone to diarrhea, and many have been impressed with the quality of the ingredients. However, a few users mentioned that they didn’t like the kibble’s smell, and some found the pieces too large for kittens.

5. Purina Pro Plan Sensitive Skin & Stomach Formula Adult Cat Food

If your cat isn’t keen on chicken as the main ingredient, you could give this lamb recipe a go—just bear in mind that it contains chicken meal, so it’s not suitable for cats with poultry allergies. It also contains oatmeal and live probiotics to help keep the digestive system working as it should.

In addition to digestive benefits, it may be helpful for cats with sensitive skin and that suffer from itchiness and dryness. It seems that a large number of users have had a great experience with this recipe, citing reduced diarrhea and improved skin and coat health. It didn’t go down well with every cat, though, but as always, there’s going to be some trial and error involved when trying out new foods.

6. Blue Buffalo Wilderness Adult Salmon Recipe

This high-protein formula by Blue Buffalo was designed based on what our cat’s ancestors ate in the wild. It’s grain-free, high in protein, and is made with real salmon and named (a good indicator of quality) meat meals, including chicken meal and fish meal. It’s also antioxidant-rich, with a variety of fruits and vegetables, including blueberries, sweet potatoes, and cranberries.

When checking out what users had to say, we found plenty of glowing reviews. Some users found that this recipe has reduced vomiting and resulted in less stinky poops, better coat condition, and was a good choice for picky eaters. On the downside, some consider the kibble too small, which was a dealbreaker for them.

7. Purina One Sensitive Skin and Stomach Cat Food

This Purina One recipe is designed to be easy to digest for cats with sensitive stomachs while simultaneously supporting healthy skin and coats. The first ingredient is real turkey, and the recipe is high in protein at 34%, which helps keep cats active as protein is key for developing lean muscles and keeping energy levels up.

A very popular cat food, this formula is not short on positive reviews. Several users feel that it has been beneficial for cats with sensitive stomachs and issues like fur loss, and some say that they have been feeding this recipe for years. As with any new food, it didn’t work for some cats, and some were unhappy with a possible recent formula change.

8. Iams Proactive Health Sensitive Digestion & Skin

If your cat prefers turkey over chicken, Iams Sensitive Digestion & Skin formula contains real turkey as the first ingredient. This recipe contains beet pulp and prebiotics, which help with nutrient absorption and keep the digestive tract running smoothly. At the same time, omega fatty acids help keep the skin and coat healthy. We also like that this recipe isn’t too pricey.

This product’s reasonable price tag means that there is an abundance of buyers, most of whom have reviewed it positively. From what we’ve read, many consider this recipe a great choice at a fair price for cats with digestive problems and skin issues.

On the other hand, some felt disappointed that Iams switched the main ingredient from chicken to turkey, but this depends on your cat’s preferences.

9. Royal Canin Digest Sensitive Loaf in Sauce Cat Food

If your sensitive kitty isn’t a big fan of dry food, you might want to try going the wet food route. This saucy loaf by Royal Canin is formulated to help reduce stool odor and aid digestion. Its proteins come from a variety of meat sources—pork by-products, chicken, and chicken liver.

We’re a bit disappointed that real meat isn’t the main ingredient in this case, but according to user reviews, this loaf has been a great help for some cats with sensitive tummies. On the other hand, some found the loaf to be too watery in consistency.

Buyer’s Guide: How to Find the Best Cat Food for Diarrhea

First and foremost, if your cat is experiencing diarrhea more often than the occasional episode, it’s a situation that requires veterinary intervention. In some cases, diarrhea is caused by a certain type of food just not suiting your cat’s system, but in others, an underlying health issue may be the culprit. If this is what’s going on with your cat, ask a vet for food recommendations.

If you’re all ready to go with picking out cat food for your sensitive cat but are finding it a tough call, there are a few questions you can ask yourself to help you choose from a bunch of products.

How We Selected Our List of Cat Foods for Diarrhea

Catster has an experienced, expert team of writers, editors, and veterinarians who carefully consider a wide range of parameters when choosing the cat foods for diarrhea. This includes but is not limited to customer reviews, brand reputation, veterinary experience, hands-on testing, and of course, our cats have a say in the process too! We aim to select and review only the best products available, to help you make the best possible choice and most informed decision for your and your cat’s needs.

Why Trust Catster?

A trusted online brand since 2001, Catster has a lot of experience with cat foods for diarrhea. Our team of cat-loving writers, editors, and veterinarians is dedicated to helping you make the best decision for your precious cats. Our aim is to provide the best information available for cat owners to help cats live their best life possible. To do this, we scour reviews from the most trusted sources available and this, combined with our veterinary team’s experience and expertise, helps us gather the best options available to readers. Our team is deeply invested in the health and welfare of cats the world over, and believes that expert knowledge and veterinary guidance will help you make the right choices—for you and your cats!

Final Verdict

If you’ve stuck with us to the end, it’s time for a short recap of our top five picks. Our best overall cat food for diarrhea pick is Hill’s Science Diet’s pricey but top-quality Perfect Digestion recipe. For our best value pick, we chose Blue Buffalo’s Sensitive Stomach formula, which is a moderately-priced recipe that uses quality ingredients.

Our premium choice is another Hill’s Science formula, this time the Sensitive Skin & Stomach recipe for adult cats between 1 and 6 years old. For kittens, we recommend Blue Buffalo’s chicken recipe from its Blue Wilderness range, and, finally, another great choice for cat food is Hill’s Science Perfect Digestion formula for senior cats over the age of 7.

We chose these cat foods based on their suitability for sensitive cats, their high-quality ingredients, and—for the most part—excellent reviews. There’s no perfect recipe, though, so we urge you to check out the ingredients list, nutritional information, and user reviews carefully before making your decision. We hope you’ve found these reviews helpful!

See Also:

• Best Automatic Cat Feeders in Canada – Reviews & Top Picks
• Best Cat Foods for Kidney Disease in Canada: Reviews & Top Picks

Featured Image Credit: New Africa, Shutterstock