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

Share

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. This rapid transit can reduce your cat’s ability to properly absorb essential nutrients, such as 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.


4. Dehydration

Another problem to consider is 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

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




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.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

Your Cat Isn’t Picky – Their Nose Is Just Bored

If you’ve ever sighed while scraping uneaten cat food into the trash, you’re certainly not alone. Many cat owners know the routine: their...

Ask Dr. Paola – Help! My Kitten Won’t Use the Litter Box! (July 27, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Chatting with Petra Luna About CatCrazy, Cat Food Ingredients & The Secret of E-Beams | Chatty Cattys, Episode 28

In this episode of Catster’s Chatty Cattys podcast, Nicole and Dr. Karyn welcome back Petra Luna from CatCrazy to catch up on her...

According to Vets, Most Owners Miss These Signs That a Cat is Sick

Cats are famously good at hiding discomfort. It is not stubbornness or indifference; it’s a deeply ingrained survival instinct. In the wild, showing...

More related

How to Destress Your Cat Over the Holidays: 9 Vet-Reviewed Ideas

The holidays are notorious for bringing cheer, joy, and gratefulness, but they also cause a great deal of stress for many people. Even...

Cat Life Stages Explained (Plus 12 Vet-Approved Tips To Improve Their Wellbeing)

It’s not uncommon for cats to live well into their 20s, and certainly into their late teens, largely thanks to improved healthcare and...

Can You Spay a Cat in Heat? Risks & Precautions

Most veterinarians generally recommend that a kitten be spayed before her first heat. But that can get tricky since kittens don’t go into...

Can Cats Eat Vegemite? Vet Reviewed Facts & Advice

Some cats are finicky eaters, while others seem to want to try anything that they can get their paws on! Felines like “meaty”...

Keep reading

Why Do Cats Like to Sit on Keyboards? 5 Vet-Reviewed Reasons

We’ve all walked into our office or been working there, only to have our feline pal leap up onto our desk and make themselves at home on the keyboard. Despite your best efforts, they will fight you to stay in...

man-with-cat-using-laptop

Why Does My Cat Bite Their Feet? 7 Vet-Verified Reasons

Cats do all sorts of strange things! The motivations of most feline behavior remain, for the most part, opaque at best, with cat lovers reduced to playing with educated guesses when attempting to explain their pets’ various quirks. They intentionally...

bengal cat biting its paw

How to Keep a Single Cat Happy: 10 Vet-Verified Tips for a Happy Kitty

If you only have a single feline in your home, you may wonder if your cat gets lonely or bored when you’re away from the house. Cats have a reputation for being somewhat aloof and fine to do things on...

cat owner with her cat near window

Understanding Lost Cat Behavior: Vet-Reviewed Feline Personality Factors

If your cat goes missing, knowing their personality may help you find your cat. Knowing their habits can guide you to specific search areas and toward effective strategies for finding a frightened cat that has been missing. If you don’t...

Feral cats eating on stone path

Can Cats Eat Hay? Vet-Reviewed Nutrition Facts

While cats are often notoriously picky about cat food, they do seem to like nibbling on various plants and human foods. If you have hay lying around the house, don’t be surprised if your cat takes a bite or two....

Can Cats Eat Hay

How to Retrain a Cat to Use a Litter Box: 13 Vet-Approved Tips

Inappropriate elimination can be difficult to deal with, resulting in ruined belongings and strained relations between cats and their favorite people. It’s one of the most commonly reported behavioral problems in cats. Litter box issues are often caused by stress,...

Ginger cat in blue litter box

Are String of Turtles Toxic to Cats? Vet-Reviewed Safety Tips & Facts

If you’re a cat parent and plant enthusiast, you know that it’s vital to choose your plants according to your liking and while considering your feline’s safety. Unfortunately, many common houseplants are toxic to cats, which is why you need...

Can Cats Eat Mums? Vet-Approved Risks & FAQ

Chrysanthemums are popular flowers that make dynamic and colorful additions in your garden or in a vase. Due to their long and challenging-to-spell name, they are also affectionately known as “mums.” If your cat seems to be interested in your...

Can Cats Eat Mums

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.