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

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

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

How Much Does a Cat Cost? 2025 Price Guide

If you’ve been dreaming of adding a cat or kitten to your family, it’s a good idea to take a look at how...

Eco-Friendly Kitty: How to Reduce Your Cat’s Carbon Pawprint

You recycle your cans and bottles, you’ve replaced plastic bags with reusable totes, and you’ve switched to fluorescent light bulbs. While you do...

A Green Alternative to Cremation: We Talk With Jerry Shevick of Peaceful Pets Aquamation

There’s no mistaking the passion Jerry Shevick has for Aquamation and serving the pet community. “We’re going to do the right thing by...

Cat Litter: Why It Pays to Get It Right

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and meet my five hilarious cats: Clutch, Cyril, Alex, Zelda, and...

More related

8 Types of Siamese Cats: Colors, Variations, Pictures, Traits & Facts

The Siamese cat is one of the oldest breeds in existence. Dating back hundreds of years in Thailand, there is mention of cats...

We Chat With Courtney Hatt, Co-Founder of San Francisco’s First Cat Cafe

San Francisco’s second tech boom has wrought profound change in a city that was built (and rebuilt) on profound change. Real estate markets...

Can Cats Eat Squid? Vet-Approved Nutrition Facts, Risks & Feeding Info

Squid isn’t common table fare in all locations, but depending on where you’re at, it might be a popular dish. In America, squid...

Sphynx Cats for Sale in Ohio: Breeders List 2025

If you love the incredibly unique appearance of a Sphynx cat, you’re probably searching diligently for a breeder. Lucky for you, Ohio has...

Keep reading

Is It True That Cat Allergies Are Genetic? Vet-Approved Prevention Tips & FAQ

If you are allergic to cats, the symptoms can be difficult to manage if you have cats. You may even wonder how your condition might impact your future children. Are they doomed to a life of dealing with cat allergies...

cat owner sneezing holding siamese cat

Diamond Naturals Cat Food Review of 2025: Recalls, Pros & Cons

Review Summary Diamond Naturals makes healthy yet affordable food for pet owners. The company makes a wide range of both dog and cat food, including recipes for specific ages and breeds of animals. One of its most popular ranges is...

Diamond Naturals Cat Food

How Do You Give a Cat Lactulose? (7 Vet Approved Methods)

Lactulose is a stool softener often prescribed to ease feline constipation. The product pulls moisture into your pet’s feces, encouraging regularity by making bowel movements less dense. It’s also often prescribed for cats suffering from liver failure to reduce the...

feeding cat using syringe

Cat Strokes: Signs, Causes, Diagnosis, Care & FAQ (Vet Answer)

Although relatively rare, cats experience strokes. A stroke occurs when there is an abrupt interruption in the blood supply to your cat’s brain. It can be very frightening if your cat experiences a stroke, and it is essential to take...

vet examining the sick cat with stethoscope

Is Patchouli Safe for Cats? Vet-Reviewed Health Facts

Humans have used essential oils for eons—as long ago as 4500 B.C. in Ancient Egypt, where they were used in ointments and cosmetics. Today, essential oils are used as part of aromatherapy and to help with minor health conditions. But...

Patchouli Flowers

8 Types of Cat Food: Vet-Reviewed Nutrition Facts & Advice

Deciding what to feed your cat isn’t as simple as it used to be. The pet food industry is experiencing explosive growth, and new manufacturers are frequently entering the market. If you’re unsure where to begin, you’ve come to the...

top view of a cream maine coon cat eating dry and wet pet food from feeding dish

Can Cats Have Tics? Vet-Verified Signs, Causes, Treatment & More

Have you ever noticed your cat twitching uncontrollably or showing some type of repetitive behavior, such as excessive grooming, tail chasing, or frantic biting? Such a display may point to a neurological issue, and to some, these the signs may...

white cat wave his paws

Osteochondrodysplasia in Scottish Folds: Vet Approved Signs, Causes & Care

Scottish Fold cats are sweet, mellow, laid-back, and fun. They’re known for their folded ears, chubby faces, and sweet temperaments. The breed’s folded ears are related to a genetic mutation that causes skeletal and joint deformities. Cats with folded ears...

vet holding a senior cat