Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

5 Potential Hairball Cat Food Side Effects: Vet-Reviewed Considerations & Tips

Yawning, choking, coughing Cat close up

Most cats get hairballs. If you’re a cat parent, you know this is a fact you can’t get away from. Whether you have a long-haired cat or a short-haired cat, chances are your cat will experience hairballs at some point in their lives. While not serious in most cases, hairballs can become too large for a cat to throw up, which could cause problems. A good hairball control cat food can help prevent the development of hairballs. However, many pet owners are concerned about the potential side effects of this food.

We’ll talk about the possible side effects below and give you tips for feeding your cat hairball control cat food if that’s the route you choose to take in the last section as well.

divider 2 cats

The 5 Potential Hairball Cat Food Side Effects

1. Too Much Fiber

Some experts worry about the effects of adding extra fiber to a cat’s diet because the fiber added to cat food to control hairballs is pretty significant. In fact, most regular cat foods only have between 1% and 2% fiber content.

However, most hairball control cat foods have as much as 8%, which is quite a bit of a difference. This may put cats at risk of digestive problems including gas, diarrhea, and constipation.


2. Greater Fecal Bulk

Increasing the fiber content in a cat’s diet often leads to larger, more frequent bowel movements. This happens because fiber adds bulk to the stool and helps retain water in the digestive tract, which promotes more efficient regular elimination. The result is increased stool volume, which is meant to assist in carrying ingested hair through the gastrointestinal system and out into the litter box, rather than allowing it to accumulate and form hairballs. While this change in stool size may be noticeable and likely not very appreciated by pet parents, it’s a normal and often beneficial effect of dietary fiber, especially in cats prone to hairball issues.

cat pooping in a yellow litter box
Image Credit: Oleg Opryshko, Shutterstock

3. Reduced Nutrient Absorption

Although fiber is beneficial to cats in moderation, excessive amounts can have negative effects. For example, speeding up the movement of food through the digestive tract too quickly. This rapid transit can reduce your cat’s ability to properly absorb important nutrients like vitamins, minerals, and essential fatty acids. Over time, this could impact overall health, so it’s important to find the right balance and ensure that your cat’s diet supports both healthy digestion and optimal nutrient absorption.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

4. Dehydration

Another problem to consider is the possibility of dehydration, especially if your hairball formula is dry and your cat does not drink enough water. Over an extended period, the overabundance of fiber in a hairball control cat food can draw the fluid away from your cat’s intestines. The missing fluid in your cat’s intestines can lead to the cat becoming dehydrated.

Chronic mild dehydration in cats can be surprisingly easy to miss, but its effects build up over time. The signs are often subtle; things like dry gums, a dull or flaky coat, constipation, low energy, or urinating less frequently. Even when dehydration is mild, it can still put stress on the kidneys, increase the risk of urinary tract issues, and make hairballs more likely by slowing down the digestive process.


5. Urinary Problems

Since cats are creatures of habit, changing their diets abruptly will stress them and might also trigger feline idiopathic cystitis. Urinary issues such as feline lower urinary disease or cystitis—an inflammation of the bladder—can also be caused by too little fluid due to the high fiber in many hairball control cat foods. This is a painful condition that no pet parent wants to see their beloved cat go through. Likewise, dry hairball foods are far from ideal for cats already prone to urinary or bladder issues because they are not formulated to control urine pH or reduce the likelihood of bladder crystal formation.

sick grey tabby cat
Image Credit: chie hidaka, Shutterstock

divider 2 cats

Tips for Feeding Your Cat Hairball Control Cat Food

If you decide to feed your cat hairball control cat food, then there are a few ways you can ensure the cat is safe, even with the high amount of fiber most of these types of cat food contain.

cat eating food from the bowl
Image Credit: Roman Samsonov, Shutterstock

Monitor Your Cat’s Reaction

The best way to determine if your cat will do well with a hairball formula is to get your vet’s approval. They should be able to recommend the best food and other ways to control your cat’s hairballs.

Remember to only make gradual changes and monitor their reaction when they first try the food. For example, if the cat develops diarrhea or constipation, cut back on the percentage of the new hairball food you’re feeding it.

Try a Natural Method

If hairball control cat food isn’t the right choice for you, there are quite a few natural methods out there that you can try. Some methods include grooming your cat more often, wiping your cat down with baby wipes, feeding high-moisture diets, adding a water fountain, feeding your cat canned pumpkin, adding a bit of psyllium husk to their food, or using hairball supplements.

Whichever method you try, make sure a vet approves it first for the best results.

divider 2 cats

Conclusion

These are a few of the side effects that have been noticed by pet parents who have fed their cats hairball control cat food. Of course, this isn’t to say that it happens with every cat, but the potential for these side effects is there.

If you’re unsure whether hairball control cat food is the right choice for your feline friend, it’s best to make an appointment and get a vet to help you decide.


Featured Image Credit: Suzanne Tucker, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Adopt A Less Adoptable Pet Week: When Is It & How To Celebrate

Animal shelters are overrun. Backyard breeding is at an all-time high. Some people fail to fix their pets, others abandon them, and some...

50 Amazing Cat Tattoos (With Pictures)

Dogs may have earned the title of a man’s best friend, but cats hold a special place in every pet owner’s heart. Throughout...

Truly Free Cleaning Products Review 2025: A Detailed Look

Our pets often make messes which require more than water to clean. But most cleaning products contain chemicals that leave harmful toxins around...

Most Popular Cat Names That Start With O: From Fun to Outrageous

Congratulations on the new addition to your family! Adopting a new kitten is an exciting time full of wonder and opportunities. It seems...

More related

10 Best Laser Pointers for Cats in 2025 – Reviews & Top Picks

Laser pointers can awaken your cat’s hunting instincts and get them off the couch! The flickering red dot easily captures their attention and...

10 Styles of Cat Scratchers: The Perfect Fit for Your Kitty (With Pictures)

Scratching is a normal cat behavior. Cats scratch for various reasons, such as to express certain emotions, maintain their claws, or mark objects...

“Kedi” Is a Gorgeously Vexing View of Istanbul’s Street Cats

The film, Kedi introduces us to a big family with many pets. The family, in this case, is the human population of Istanbul,...

Do Cats Scratch Velvet? Vet-Verified Facts & Scratching Advice

We’ve all been sitting on the couch while watching TV, only to hear the sound of fabric ripping. You’ve probably done everything in...

Keep reading

Can Cats Eat Tapioca? Vet-Approved Nutrition Facts

If you’re wondering if your kitty can lap up a bit of your tapioca pudding without getting sick or poisoned, you’ve come to the right place. Tapioca is not toxic to cats, and in fact, it is found in the...

Can Cats Eat Tapioca

How Long Will It Take for CBD to Work on My Cat? Facts & FAQ

CBD is a non-psychoactive cannabinoid derived from cannabis that has been shown to have anti-inflammatory and analgesic properties.1 Anecdotal evidence suggests that CBD may be beneficial in the treatment of a variety of medical conditions in humans and animals, including...

giving cat cbd oil

Will Bed Bug Spray Hurt My Cat? What You Should Know!

Bed bugs can cause a troubling infestation in any home, and while they rarely bother cats, they can use pets as a form of transportation to spread throughout the house. You will want to get rid of them as soon...

hand spraying on bed

Why Does My Cat Bury Their Head? 7 Vet-Reviewed Reasons

Cats have many cute habits, one of which is their tendency to bury their head while they sleep. Regardless of whether you’ve owned cats all your life or have only recently adopted your first feline, most cat owners are familiar...

Striped grey cat curled up in bed

Cat Lice vs Fleas: Vet-Reviewed Key Differences

Sooner or later, every pet owner will find tiny bugs crawling on their pet’s skin. But are they fleas or cat lice? It can be hard to tell the difference between the two small pests. Therefore, this article will teach...

Lice VS Fleas

6 Weird Things Cats Eat: Vet-Reviewed Safety Tips & Considerations

It’s normal for cats to eat weird and wonderful things, but just because it would be weird—and gross—for us to consume doesn’t mean that your cat feels the same way. Things like mice, birds, bugs, and lizards are easy prey...

Weird Things Cats Eat

Fromm Cat Food Review of 2025: Recalls, Pros & Cons

Review Summary Fromm is a family-run business based in Wisconsin. The business started, in 1909, producing the first distemper vaccine for dogs, and sold their first dog food in 1949. Today, the fifth-generation family business produces nutritional, high-quality foods for...

Fromm Cat Food Review

Do Cats Feel Remorse or Guilt the Same Way Humans Do? Dealing With Bad Behavior (Vet-Reviewed)

While your beloved cat feels connected to you, he won’t feel bad if he pees or poops outside the litter box, scratches up your furniture or does something outrageous in your home that creates chaos. Unlike us humans who feel...

Sad, calico cat sitting, looking through small front door window on porch