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.

Indoor vs. Outdoor Cat Food: Vet-Reviewed Nutritional Differences

Share

outdoor vs indoor cat food

You’ve probably stood in the cat food aisle of your local grocery or pet store and marveled at the sheer number of options available. There is seemingly a special type of cat food for every cat out there. There are grain-free, raw, freeze-dried, kitten, senior, and many more options. Two types that can be very puzzling to cat owners are indoor and outdoor cat food. What is the difference between the two and which one does your cat need?

In this short guide, we explain the differences between indoor and outdoor cat foods. We also give you some tips about how to choose the best food for your cat’s needs.

divider 3 paws

Overview of Indoor Cat Food

A few brands of commercial cat food come in an option for cats that are exclusively indoor pets. Food formulated for indoor cats typically has fewer calories per serving than food designated for outdoor cats. This is because cats who live only indoors typically get less exercise than cats who roam outdoors. You can read the back of the package to see the total calorie content per serving or per container to give you an idea of how many calories a serving provides your cat with.

cat eating beef
Image Credit by: liudmila_selyaninova, Shutterstock

Is Indoor Food Healthy?

If your indoor pet gets sufficient exercise, they don’t necessarily need food intended for indoor cats and can be offered any nutritionally complete diet. A nutritionally complete diet has a mention or statement of it being able to meet all the nutritional requirements of your pet. These are often in the form of an approval from a relevant regulatory body. For example, in the US, pet manufacturers follow guidelines set forth by The Association of American Feed Control Officials (AAFCO).

Some indoor foods are perfectly healthy for your cats, while others might not be appropriate for your pet. It’s important to read the ingredients before purchasing a new kind of cat food. The main ingredients should be real meat from poultry, fish, beef, or another source. There shouldn’t be any artificial dyes or other fillers in the food. If you notice a bunch of odd-sounding ingredients that make you ask yourself “Should this be in here?” you probably need to select a different food.

Indoor foods typically have lower protein content, instead, they rely on high-fiber vegetable fillings. While it’s fine for cats to have some vegetable matter in their food, they still need a significant amount of protein. Taking away protein from their food doesn’t make a cat healthier. Instead, veterinarians suggest encouraging your cat to get more exercise.

One benefit, however, of the higher fiber levels in indoor foods is they help move things through the digestive tract more easily. This can be helpful if your cat is prone to hairballs as the fiber will help clear the hair from the digestive tract. However, in a strict sense, cats don’t have a dietary requirement for fiber, and diets with added fiber will inevitably call for more frequent litter box maintenance, which might not be appreciated by all pet owners.

Hepper NomNom - Spill Proof Elevated Cat Bowl
  • NO MESS - The 360° tray on this cat food and water bowl set has a raised design to catch and...
  • WHISKER FRIENDLY - Shallow and wide metal containers with flat bottoms ensure your kitty can enjoy...
  • CHEW-SAFE MATERIALS - Kittens and cats love chewing on silicone and soft rubber - but it's a choking...

Feeding your cat a high-quality diet is important for keeping them healthy and happy. But it goes beyond the food you choose; the dishes they use also matter. The Hepper NomNom Cat Bowl is our favorite for its unique, five-star design that protects from whisker fatigue and promotes good posture which also aids in better digestion. As an added bonus, it’s beautifully crafted and offers a modern take on the traditional cat bowl that fits seamlessly with all home stylings. Learn more about the NomNom by clicking here.

At Catster, we’ve admired Hepper for many years and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool cat company!

 

 

What Types of Indoor Foods Are Available?

Indoor formula cat food comes in many different varieties from canned, to freeze-dried, to senior food, to raw, to dry kibble. The one that is best for your cat is the one they will eat! Cats can be choosy eaters, just like humans.

Pros
  • Lower in calories
  • Some high-protein options are available
  • Come in a wide variety of types
  • Can help with hairball control
  • Might be a good choice for a very sedentary cat due to lower calorie counts
Cons
  • Some brands replace protein with filler ingredients
  • Can create a caloric deficit in your cat’s diet if they’re active
  • Is not an alternative to exercise

You should also discuss your options with a veterinarian to determine your cat’s specific nutritional needs.

Need veterinary advice but can't get to the clinic? Catster recommends PangoVet, our online veterinary service. Talk to a vet online and get the answers and advice you need for your cat without having to leave your living room — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider 3 paws

Overview of Outdoor Cat Food

The only real difference between indoor cat food and outdoor cat food is the calorie count. Most cat foods designated as outdoor cat foods are just regular cat food without calorie cutbacks.

Cat eating from a bowl
Image Credit: meineresterampe, Pixabay

Is Outdoor Cat Food Healthy?

Food intended for outdoor cats can be considered healthy if it has high-quality ingredients. Just like with indoor formulas, you should look for food that lists real meat as the first ingredient. The best way to find food that is healthy for your cat is to look at the ingredient list. If you notice many fillers and additives, it’s not a good choice for your cat. Likewise, the food needs to be nutritionally complete and balanced.

If you find a food your cat enjoys and it has minimal ingredients, you’re probably off to a great start. If you have a very active indoor cat or one that doesn’t have a problem with hairballs, you don’t need to feed them an indoor cat formula.

One other key component to remember is that indoor cats, regardless of the type of food they eat, are often healthier and live longer than outdoor cats. Keeping your cat indoors protects them from parasites, predators, and accidents. There are plenty of ways to keep your cat active indoors, too, so you don’t have to worry about them gaining unhealthy excess weight.

The biggest drawback of outdoor cat food is that it’s very difficult to ascertain your cat’s nutritional needs if they roam outdoors. Granted, they may exercise more during their outdoor excursions, but they may also eat more while outdoors. This can be in the form of catching prey or being fed by well-intentioned samaritans. Furthermore, some outdoor cats aren’t necessarily active and may enjoy their outdoor time relaxing somewhere and simply enjoying the sights and sounds of the neighborhood.

hungry Nebelung cat with kibbles in front
Image Credit: Alesia Fes, Shutterstock

What Types of Outdoor Foods Are Available?

Like indoor formulas, outdoor foods are available in wet, raw, freeze-dried, and kibble styles.

Pros
  • Higher in calories than indoor formulas
  • Great for active cats
  • Available in many types for all cat palettes
Cons
  • Higher in calories and can cause weight gain in inactive cats
  • Many brands use unhealthy fillers and preservatives
  • Difficult to ascertain an outdoor cat’s nutritional needs.

divider 3 paws

When to Feed Your Cat Indoor Food
  • If they are sedentary
  • Your vet recommends weight loss for your cat
  • Your cat prefers an indoor food

When to Feed Your Cat Outdoor Food
  • Your cat is very active
  • Your cat is underweight and your veterinarian deems such food as acceptable to help them pack on some weight
  • Your indoor cat prefers the food and is active

divider 1 paws

Conclusion

Next time you shop for cat food, you don’t have to stress about the many different options on the shelves. Of utmost importance is making sure the food is nutritionally complete and balanced for cats. The best food for your cat is one that contains high-quality ingredients and suits their caloric needs. The biggest difference between indoor and outdoor cat food is the calorie content. If you’re still uncertain about what your cat needs, ask your veterinarian for guidance.


Featured Image Credit: Capri23auto, Pixabay, Seattle Cat Photo, 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

2 Responses

  1. when i read about indoor cats needing exercise and playtime, it breaks my heart. i am handicapped, in bed all the time. my babies are everything to me. obviously, i cannot do what authors such as you suggest.

    1. Hi Michael,

      Thank you for your heartfelt comment. We deeply understand your concerns about keeping your cats entertained and active, especially given your situation. It’s wonderful to hear how much your pets mean to you.

      While physical interaction can be limited, there are many ways to encourage your cats to play independently. You might find some helpful ideas in these blogs: – https://www.catster.com/lifestyle/cat-brain-games/
      – https://www.catster.com/lifestyle/ways-to-entertain-cat-while-hes-alone/
      Please copy and paste the links on your preferred browser

      These resources suggest engaging toys and activities that can keep your cats stimulated, even when you’re unable to play with them directly.

      Your dedication to your furry companions is truly admirable, and we hope these ideas can help create a joyful environment for both you and your cats. If you have any questions or need further assistance, please feel free to reach out.

      Warm regards

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

The 10 Common Causes of Sudden Death in Cats (And Which Ones Are Preventable)

Most cat owners don’t think much about heart disease, internal hemorrhage, or viral infections until they’re staring at an empty bed. Sudden death...

Ask Dr. Paola – Help! My Cat Suddenly Has Dandruff! (March 30, 2026)

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

Your Cat Keeps Vomiting After Eating: Here’s What’s Going On

Cats vomit. It’s one of the less glamorous facts of life with a feline, and most cat owners have cleaned up more than...

Ask Dr. Paola – Help! My Cat Gets Diarrhea from Wet Food! (March 23, 2026)

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

More related

How Aggressive Are Bombay Cats? Tendencies & Behavior Tips

The Bombay cat is a beloved house cat in many households because of its sweet disposition. They enjoy snuggling up to their owners;...

How to Protect Your Carpet From Cats: 10 Effective Vet-Approved Methods

When you’re a cat, scratching comes with the territory, but if it occurs on your carpet, it can cause significant damage. Protecting your...

Why Is My Cat So Hungry All of a Sudden? 6 Vet-Reviewed Reasons

Most domestic cats like to eat small, frequent meals daily instead of one or two feasts. It might be normal to see your...

Scottish Fold British Shorthair Cat Mix: Info, Pictures, Temperament & Traits

The Scottish Fold is instantly recognizable due to their folded-over ears and thick, short fur. The British Shorthair has characteristically large round eyes...

Keep reading

Can Rice Be Used as Cat Litter? Vet-Reviewed Pros & Cons

Cats are among the most popular pets in America, behind only dogs.1 They are friendly, playful, and easy to care for. However, they do go through quite a bit of litter, which can cause some owners to look for suitable...

rice

How Long Can You Safely Leave Your Cat Alone? Vet Approved Tips & Alternatives

Many of us cat owners need to leave our cats alone on a regular basis. But where’s the line between an okay amount of time for your cat to be left alone and too long? The answer depends on the...

fluffy cat lying on windowsill

How to Be a Good Cat Owner: 10 Vet-Reviewed Tips

There’s a big difference between having a cat and being a good pet parent. Being a good cat owner is more than just putting out food and buying your cat a bed. So, whether you have a special feline in...

white cat with the owner

Cat Lymph Nodes: Vet-Verified Health Facts, Guide & Diagram

Lymph nodes are present in humans and cats, but most of us are not aware of their existence unless there’s a problem. They play a crucial role in preventing infections in cats, but unfortunately, lymph node diseases are fairly common....

Hands checking cat with lymph nodes

How Does a Cat Neutering Procedure Work? Vet-Reviewed Facts & Care Tips

A neuter procedure is the surgical removal of a male cat’s testicles. Reading that definition might make you cringe. You may even question if the procedure is worth it. It’s not something you or your cat enjoys, but it comes...

cat neutered

How Many Fleas Is Considered an Infestation on a Cat? Vet-Approved Signs & FAQ

Fleas are a common problem for cats and not only cause various degrees of itchiness and discomfort but can also transmit diseases and pose a risk to anyone in the household. Even one flea on your cat is a big...

Cat wearing collar scratching and itching

Are There Cat Hemp Treats? Vet-Verified Health & Safety Facts

With hemp products becoming more and more popular, pet owners worldwide are increasingly wondering if hemp-based products can be offered to cats. The answer is yes, cats can have hemp-based treats; however, these products should always be approved by your...

giving orange cat a hemp chew

Why Is My Cat Biting Me All of a Sudden? 8 Possible Reasons (Vet Verified)

If you’ve spent any amount of time around cats, you’ve probably experienced how fast they can go from purring in delight to digging their teeth into your unsuspecting hand. But why does my cat randomly bite me? While biting doesn’t...

tabby-cat-biting-the-hand-of-the-owner

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.