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

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.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Siamese Kittens for Sale in Virginia: Breeders List 2025

Catster advocates for adopting before shopping, though we fully understand there are many reasons for seeking a breeder. So, we encourage it to...

Why Is My Elderly Cat Suddenly Pooping on the Floor? 9 Vet-Reviewed Reasons

Our cats are known to be fastidious creatures, and it can be disconcerting when you find your beloved pet pooping on the floor....

8 Best Cat Foods for Healthy Skin & Coats in 2025: Reviews & Top Picks

We all want our felines to be happy and healthy. However, sometimes they have problems with their skin and coat. It may be...

How to Stop a Male Cat From Mounting: 7 Vet-Reviewed Reasons & What To Do

Watching your male cat mount various objects, you, or even other animals around your home can be frustrating and confusing. It doesn’t make...

More related

Heartworm Prevention for Cats: 3 Vet Approved Methods

Of all the diseases our cats can suffer from, heartworm disease is one of the worst. This disease is transmitted by mosquitoes that...

Is Your Cat a Vertical Pee-er? What to Do & How to Help (Vet-Reviewed)

Cats can develop strange habits that leave us feeling perplexed. One such strange behavior is vertical peeing. Cats can start to pee vertically...

Cat Bucket List: 14 Fun Things to Do With Your Kitty

Sometimes, it can be all too easy to take our cats for granted. Before we know it, our gorgeous kittens are old cats,...

8 Best Cat Doors (2025) – Reviews & Top Picks

Cats are naturally adventurous, independent, and fairly solitary creatures that need a fair amount of freedom and space to stay happy. While most...

Keep reading

Do Cats Eat Their Own Poop? Vet-Verified Facts & How to Stop It

Cats are curious creatures, and we may see them sampling various non-edible things, including houseplants, cardboard boxes, and our toes. Many animals eat their feces to digest maximum nutrients, but do cats eat their own poop too? Cats do not...

two-cats-looking-at-the-litter-box

Best Way to Feed a Cat: Times, Amounts & Frequencies Explained

Many cats are more than happy to make it known when they want to be fed, but they may not know when and how much they actually should be fed. Some of us like to eat too much, and cats...

man feeding his hungry cat at home

How to Approach a Scared Kitten: 6 Steps & Tips

Finding a scared kitten can throw anyone off guard, leaving you wondering what to do and how to help. Many factors and scenarios come into play as to why you’ve found a scared kitten. An irresponsible owner could have dumped...

Cute munchkin kitten on purple bed

Can Cats Eat Mulberries? Vet-Reviewed Facts & FAQs

Mulberries are sweet fruits that range in color from red to deep purplish-black. For humans, the health benefits of mulberries are touted far and wide, but what about for cats? Good news: According to the ASPCA, mulberries are not toxic...

Can Cats Eat Mulberries

How To Choose A Kitten From a Litter: 6 Vet-Verified Traits To Look For

Adopting a kitten is a life-changing event. The young cat you bring home today will hopefully be with you for the next 15–20 years. Selecting a cat that’s right for you and your home is therefore of the utmost importance....

tabby mother cat feeding her kittens

Is Caladium Toxic to Cats? Vet Approved Facts & Safety Tips

The pinkish-red and green heart-shaped leaves of the caladium plant make it a vibrant addition to any household. However, its pretty appearance is deceptive: Caladium is toxic to cats, dogs, horses, and humans1. Ingesting the plant can make your cat...

Catster_Is Caladium Toxic to Cats

Does UV Light Kill Fleas on Cats? Vet-Reviewed Effectiveness, Safety & Alternatives

Fleas are pernicious little parasites, and it can be hard to get rid of them on your cat. This fact has given rise to the rumor of UV light killing fleas, but is it true? UV light can technically kill...

Lamp ultra violet

How to Remove a Tick From a Cat: Vet-Approved Steps & Advice

Removing a tick from a cat is not difficult, but it may not be as easy as you think. The hardest part is keeping your cat still, but the process is quite simple with a tick removal tool. You must...

removed tick from cat