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.

How Long Do Obese Cats Live? Vet Approved Facts & Health Tips

Share

white-cat-laying-on-the-animal-scales-while-the-male-vet-measure-weight_Odua-Images_Shutterstock

It’s easy for your cat to become obese. They’re too adorable when they beg for food with those big eyes. However, obesity can drastically affect your cat’s lifespan. While healthy cats have been known to live into their 20s, obese cats can have their life expectancy significantly reduced to 5–10 years.

Understanding obesity, its causes, and the risks involved will help you understand why it’s such a big problem. In this guide, we’ll help you determine whether your cat is at risk of obesity and how to prevent it and safely manage your cat’s weight.

divider 1 paws

How Long Do Healthy Cats Live?

Before fully understanding how obesity affects your cat’s life expectancy, you must know how long healthy cats can live. It can vary depending on the breed and health of the cat. Another factor to consider is whether the cat is allowed outdoors and has been spayed or neutered.

Intact cats are prone to reproductive diseases and cancers that can lessen their life expectancy, and outdoor cats are more at risk of encountering predators or getting hit by cars. On average, a healthy cat will live between 12 and 14 years. Some cats have been known to live much longer and can reach their 20s.

a cat lying on a blanket
Image Credit: Nadezhda Zaitceva, Shutterstock

How Long Do Obese Cats Live?

While other factors can interfere with a cat’s lifespan, obesity is one of the most common. It affects almost 60% of cats in the U.S.A. and plays a massive role in a cat’s life expectancy. Excess weight, even a moderate amount, has a significant impact on a cat’s health and longevity. Studies have shown a 2.8-fold increase in mortality in obese cats between the ages of 8 and 12 compared to lean cats.

An extensive lifetime study of Labradors found that a moderately overweight group of dogs lived approximately 2 years less than the leaner dogs. Similar results are expected in cats, and on average, obese cats may have their life expectancy reduced to 5–10 years.

divider 1 paws

What Causes Obesity in Cats?

It’s easy to assume that obesity is only caused by overfeeding your cat. While diet and the amount of food your cat eats are two of the biggest causes of obesity, there are other causes to consider.

1. Age

How old your cat is can affect how much weight they put on. Usually, middle-aged cats are the most at risk of gaining too much weight. The cats that are most at risk are between 8 and 12 years old. All cats are susceptible to obesity, but younger cats, particularly kittens, are usually active enough to burn off the calories that they eat.

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

2. Diet

There are a few ways that your cat’s diet can affect their weight. Obesity is most often caused by overeating. It can be due to excessive treats, indulgent or ad-lib feeding practices, or something more accidental, like inaccurately measuring their food for meals. Sometimes, it can be a mix of all three.


3. Inactivity

Indoor cats have less to do than outdoor cats and are more likely to be overweight. If their diet isn’t adjusted to match their activity levels, your cat’s tendency to nap all day in their favorite window can quickly lead to obesity. Always give your cat something to do, such as playing with toys or encouraging them to work for their food using puzzle toys.

grey british shorthair cat sleeping below person's feet in the couch
Image Credit: Carlos G. Lopez, Shutterstock

4. Underlying Health Conditions

Inactivity isn’t just caused by your cat’s environment; it can also be a result of an underlying health condition. A problem like arthritis is a common cause of obesity. If your cat is in pain whenever they move, they’ll be less inclined to want to get up and move around.

It’s not just joint issues that you need to consider, however. Food sensitivities and allergies can make it difficult to find a suitable weight management diet for your cat.

divider 1 paws

What Are the Risks of Obesity in Cats?

An overweight cat is often seen as adorable or cute. Unfortunately, obesity is an incredibly serious problem and can affect your cat’s lifespan and lead to severe health issues, as well as negatively impacting their quality of life.

Obese cats are more at risk of developing the following:
  • Arthritis
  • Bladder stones
  • Cancer
  • Complications with anesthesia
  • Diabetes
  • Heart disease
  • Hypertension
a sick balinese cat
Image Credit: beka venezia, Shutterstock

How to Tell If Your Cat Is Obese

Obesity isn’t the same for all cats. Their breed, size, and age can all affect how much they weigh. Large breeds, for example, might weigh more than small cats, but that doesn’t mean they’re overweight. A cat’s ideal weight changes depending on the individual.

Sometimes, you can tell if your cat is obese by looking at them from above. They might be overweight if you can’t see a waistline, or they look rectangular. To properly figure out if your cat is obese, you first need to determine their ideal weight. Cats that are more than 20% over their ideal body weight are considered obese.

A veterinarian can help you determine your cat’s body condition score and whether your cat is the right weight, slightly overweight, or obese. They’ll also be able to help you manage your cat’s weight properly by recommending the right diet and exercise regime.

Cat Body Condition Score Healthy Weight
You are free to use this image but we do require you to link back to Catster.com for credit

How to Prevent Obesity in Cats

Obesity in cats is preventable. It might not be easy, but with the right tactics, you can help your cat maintain a healthy weight. This will reduce your cat’s chances of becoming obese and keep them healthy.

Obese cats aren’t beyond hope, and you can help your cat lose weight. Ask the veterinarian for advice, and always follow the recommended diet plan to ensure your cat stays healthy while losing weight. Even a small amount of weight loss can significantly affect your cat’s quality of life.

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

Ways to manage obesity include the following:

Never resort to cutting down on your cat’s food altogether. You still need to ensure that your cat gets a balanced, nutritional diet. Instead, reduce the number of treats and snacks between meals, and don’t give them human foods!

Regarding their main diet, you need to adjust the portion sizes based on the veterinarian’s advice, the type of food, and how often you feed your cat. Weight loss should be slow and steady.

divider 1 paws

Conclusion

Obesity is a serious problem that affects about 60% of cats in the U.S.A. It’s defined as a cat weighing more than 20% of their ideal weight (based on age, activity, and breed) and can significantly reduce their life expectancy and quality of life.

Taking steps to prevent obesity and manage your cat’s weight requires patience and perseverance. The healthier your cat is, the less likely they will develop serious health issues, and the happier they will be.


Featured Image Credit: Odua Images, 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

The Surprisingly Simple Ways to Help a Cat With Hairballs

Cats spend an astonishing amount of time grooming. It is part hygiene routine, part comfort ritual, and part instinct that traces back generations....

What a CATastrophe! A Tire-ing Ordeal For a Pony in the UK

As you would expect, our weekly news updates are usually centered around feline topics – we are a cat care website after all...

Ask Dr. Paola – Help! My Cat Has Stopped Eat His Wet Food! (June 1, 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 About Fake News in the Pet World, AI Again, and New Age Journalism | Chatty Cattys, Episode 23

Navigating the modern digital landscape requires a sharp eye to distinguish fact from fiction. In this episode of Catster’s podcast, Chatty Cattys, Nicole...

More related

Take Your Pet to Work Week: When & What Is It (2026 Update)

Bringing your pet to work is a recent trend. However, there is now a whole week centered around bringing your pet to work,...

Can Cats Eat Ribs? Vet-Approved Facts & Health Guidelines

Barbeques are one of the most valued traditions in America—families and friends across the country regularly gather for backyard barbeques. However, no backyard...

Are Ragdoll Cats Affectionate? The Surprising Answer!

Ragdoll cats are beautiful and intriguing. Their intelligence and docile behavior make them the perfect pet for those looking to maintain a calm...

Catster Photo Contest: Cats of the Week Winners (Feb 20, 2025)

This Week’s Winner Silliest Cutest Most Dignified Best Action Shot Sleepiest Most Expressive Enter Your Cat Submit your kitty for a chance to...

Keep reading

Snowshoe Cat Vet-Approved Weight, Size & Growth Chart

Snowshoe cats are gaining popularity, and more and more people are becoming interested in the breed, particularly in the United States. But how big do Snowshoe cats get? How fast do they grow? What do they need to maintain a...

cat breed snowshoe

Does Salt Kill Fleas on Cats? Vet Reviewed Effectiveness & Safety

A flea infestation can really ruin your week. Not only are fleas a nuisance for your cat, but they can also be a nightmare to get rid of in your home. There are plenty of products to treat flea infestations,...

Salt

How To Keep Flies Away From Cat Food: 4 Vet-Reviewed Tips & FAQ

High-quality wet food is tasty, high in moisture, and rich in protein, but it does come with one major drawback—flies. Wet cat food is the ultimate fly paradise because it congeals quickly, especially in summer. If you’ve been having issues...

a fly on dog or cat food

How Long Do Devon Rex Cats Live? Vet-Verified Facts & Data

The Devon Rex cat is famous for their unique looks, marked by a triangular face, huge ears, and large eyes. But even more interesting than their appearance is their lovable personality. They are intelligent and playful and love being around...

red-devon-rex-cat-in-gray-background

Do Cats Have a Belly Button? Vet-Reviewed Anatomy Facts & FAQ

When you’re petting your cat, and it rolls over so you can rub its stomach, you might find yourself wondering, do cats have a belly button? The answer to that question is yes; cats do have belly buttons. Like us,...

cat owner rubbing her pet cat's belly outside

Are Elephant Ears (Alocasia) Toxic to Cats? Vet-Reviewed Houseplants Examined

You don’t need a green thumb for elephant ears (Alocasia) to thrive in your home. The plants only need indirect sunlight, moderate humidity, and weekly watering. An elephant ear’s large, two-toned leaves bring a hint of the tropics to any...

Catster_Are Elephant Ears Alocasia Toxic to Cats

How to Tell if a Cat Is Stressed: 12 Vet-Reviewed Signs to Watch For

In some ways, cats are a lot like people. They get stressed and anxious. Unlike humans, they can’t tell us their problems using words, and we have to look for subtle signs to identify when a cat is stressed. This...

Sad depressed cat laying down

Can Cats Eat Hummus? Vet-Reviewed Nutrition and Safety Facts

Hummus is a popular Middle Eastern food enjoyed by many Americans. You can enjoy hummus as a dip, dish, or spread, and if you enjoy eating it in your home, you probably wonder if your cat would like it as...

Can Cats Eat Hummus

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.