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.

What to Feed a Diabetic Cat to Gain Weight: Vet-Reviewed Health Tips

cat thin

Diabetes has become an epidemic, not just in people but also in pets. Feline diabetes is most similar to type 2 diabetes in humans, meaning that weight management and diet are critical factors in controlling the condition. Cats with diabetes often lose weight rapidly when their condition isn’t managed well, leading to further health complications and even death.

Let’s take a look at some tremendous diabetes-friendly foods you can feed your cat to help them gain weight.

divider cat paws oct 2024

What Is Feline Diabetes?

Feline diabetes is similar to human type 2 diabetes. It occurs when the pancreas is overloaded and shuts down, preventing or slowing the production of insulin—the hormone that processes the nutrients in our bloodstream into energy.

Cats with feline diabetes may need to be put on supplemental insulin, delivered by injection under the skin. These insulin injections provide the cat with the insulin the pancreas cannot make and allow them to process its food into energy correctly.

Diabetic cats who do not get insulin can die from an overage of blood sugar that will shock the body.

Best Foods for Diabetic Cats to Gain Weight

maine coon cat finished eating
Image Credit: Lita Keire, Shutterstock

Helping your cat gain back some weight they’ve lost in the beginning stages of its diabetes can be tricky since diabetes can cause consistent weight loss, even when it is eating enough. Diabetes also requires a special diabetes-friendly diet that prevents drastic spikes in blood pressure that overwork the pancreas. Thus, choosing the right food for your diabetic cat is critical to their continued health.

To help cats gain back the weight they lost from their diabetes, you’ll need to feed them a diet that won’t overload their pancreas to consume the correct number of calories to gain weight. This means you need to choose foods with a specific nutrient profile.

Low Carbohydrates

Diabetic cats should be fed low-carbohydrate diets. Truthfully, all cats should be fed a low-carbohydrate diet. Cats are scientifically classified as “obligate carnivores,” which means they’re biologically designed to eat a diet comprised of at least 70% animal proteins.

Carbohydrates also cause sudden spikes in blood sugar levels. This puts a lot of pressure on the pancreas to produce more insulin to process the carbohydrates into energy. When the pancreas is already struggling to produce insulin, forcing it to attempt to make more will only hasten its demise.

Cats with diabetes should be fed a diet of less than 10% carbohydrates, but some cats may need a carbohydrate content of 5% or less.

High Protein

Cats with diabetes should get most of their nutrients from protein. Again, all cats should be getting most of their nutrients from animal protein. Proteins are more accessible for the pancreas to break down and satiate the cat’s hunger drives longer. Protein is also the building block for cats. A cat’s body starts and ends with proteins. Ideally, most cats will do well on a diet that is at least 30% protein, but diabetic cats should be fed a diet that is at least 50% protein.

Fat

Your diabetic cat’s diet should be rounded out with healthy fat sources. At least 20% of their diet should come from healthy fats because these are also relatively easy on the pancreas.

Navigating all these specific nutritional requirements can be difficult for an ordinary cat parent, so don’t hesitate to reach out to a veterinarian and ask for guidance.

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 cat paws oct 2024

Canned vs Dry

Canned food is typically better for cats with diabetes as carbohydrates are a critical component of making kibble. Canned foods usually contain lower carbohydrate content than dry food. Thankfully, if your cat will not eat canned food—a relatively rare occurrence in cats, you can look for special, low-carb kibble that provides the correct nutrient profile for diabetic cats.

top view of a cream maine coon cat eating dry and wet pet food from feeding dish
Image Credit: Nils Jacobi, Shutterstock

Do I Need to Feed My Diabetic Cat Prescription Food?

Contrary to popular belief, diabetic cats do not need to eat prescription diets. Many commercially available cat foods contain the protein, fat, and carbohydrate contents necessary to help treat feline diabetes without the added price tag.

divider cat paws oct 2024

Final Thoughts

Finding out that your cat has diabetes can be upsetting and worrying, but the good news is that it’s a condition that is relatively easy to manage with diet and medication. Getting your cat onto a diet specifically designed for its unique needs is critical to caring for a diabetic cat. So, talk with a vet to create an individualized plan for your cat’s continued health and overall well-being.


Featured Image Credit: Hanish, Pixabay

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. I am feeding him DM canned cat food once-a-day (I only see him for 2-3 hours a day (where I work) Also leaving a lot of Purina ProPlan DM dry food for the rest of the day (when no one else is around). I would like to add some "high-quality fat" to help him gain back lost weight. Can you suggest some sources for such fats? (Preferably a source that wouldn't spoil if left at room temperature over night). Thanks for considering my question.

    1. Sammy A Nicolosi, salmon oil, high-quality fish oil, and krill oil are all good fatty acid sources for cats. However, you will need to ensure they are consumed and not left outside as fats have a tendency to oxidize and become rancid. Likewise please get any supplement approved by your veterinarian beforehand.

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

Cat Water Fountains: Vet-Reviewed Pros & Cons

Cat water fountains are unique tools that can help cats stay hydrated. Cat water fountains are known to draw your cat’s attention, as...

8 DIY Free Automatic Cat Feeders You Can Build Today (With Pictures)

Are you considering getting an automatic cat feeder but can’t decide if it’ll be the solution you and your cat need? Automatic cat...

Why Do Cats Slap and Swat? 9 Vet-Reviewed Reasons & Tips

Cats, elegant and beautiful as they are, have some pretty perplexing behaviors. On top of the list is slapping and swatting anything (and...

Skin Ulcers in Cats: Our Vet Explains the Causes, Treatment & FAQ

Some feline diseases are quite subtle, but skin ulcers are not. Skin ulcers look like sores or open wounds on your cat. They...

More related

Are Emotional Support Vests Necessary for Cats? Vet-Verified Recommendations & FAQ

Emotional support animals (ESAs) are one type of assistance animals, however, they are different from service animals and, therefore, are subject to their...

10 Favorite Cat Kitchen Accessories In 2025 – Reviews & Top Picks

All cat lovers are always looking for ways to amplify their love for their felines. That usually means revolving their entire wardrobe and...

Acana Cat Food Review 2025: Recalls, Pros & Cons

Review Summary Introduction ACANA has various premium cat food recipes and flavors that are rich with animal protein and nutrients to ensure that...

9 Best Hairball Remedies for Cats in 2025 – Reviews & Top Picks

It’s never pleasant when your best feline friend coughs up a hairball. With cats cleaning themselves so often, it’s inevitable for all that...

Keep reading

8 Best Waterless Cat Shampoos in 2025: Reviews & Top Picks

Cats are known for their grooming, as they spend such a large part of their day, every day, bathing themselves. But sometimes your cat might get into something nasty that they might need help removing. Most cats are also known...

light grey cat with rubber ducky bath bathroom shampoo

Can Neutering Your Cat Increase Their Life Expectancy? Vet-Reviewed Facts

Neutering your cat is one of the most important procedures in your male cat’s life.1 Every cat owner knows how bad male cat urine smells, and unneutered males tend to spray once they enter puberty. Aggressive behavior ensues; your male...

cat wearing elizabethan collar after neuter surgery

Why Is My Cat Scared All of a Sudden? 10 Vet-Approved Reasons

It can be very disconcerting to a loving cat parent when their cat starts acting scared. True, some cats are naturally more nervous or jumpy than others, but if the change is sudden and unexpected, it’s important to try and...

scared British blue-point cat hiding under the bed

Why Is My Cat’s Fur Matted on His Back? 10 Vet-Reviewed Reasons

Our feline friends spend a good amount of their time grooming themselves, but even with all that work and attention, they occasionally get mats in their fur. This is especially true when it comes to the back, as matted fur...

cat with matted fur

How Long Do Siberian Cats Live? Vet-Verified Lifespan Facts & FAQ

The Siberian, also known as the Siberian Forest Cat, originates from Siberia, Russia, and is highly resistant to cold weather and cold conditions. It has a fluffy tail, thick coat, and is slow to mature. It is considered a good...

Siberian cat on a winter walk

How to Make Your Cat Happy: 22 Effective Vet-Verified Ways

Cats can make incredible pets that shower you with attention and affection. They can be confident, lively, and fun, but it is important to keep them happy. Keeping your cat happy is a bizarre complex to those who interpret happiness...

Happy kitten likes being stroked by woman's hand

Can Cats Eat Cookies? Vet-Reviewed Facts & FAQ

While a nibble of your cookie is unlikely to kill your cat, cookies are far from healthy for cats and absolutely should not be fed to your cat regularly. Human sweets are incredibly unhealthy and sometimes very dangerous for cats....

Can Cats Eat Cookies

Can Cats Eat Chicken Bones? Vet-Verified Nutrition Facts & Safety Guide

Cats just love eating chicken! It can be a healthy part of any cat’s diet. But what about chicken bones? After all, cats out in the wild (or your little hunters at home) catch and eat birds, bones and all....

Can Cats Eat Chicken Bones