
“Sweet” Troubles: Diabetes in Dogs and Cats
If your dog or cat suddenly starts drinking more water than you do on a 35°C summer day, or begins to lose and gain weight at the same time – it’s not time for conspiracy theories, but for a visit to the veterinarian. Diabetes in dogs and cats is one of the conditions we’re seeing more frequently in veterinary practice. The good news? When detected early and managed properly, it doesn’t have to mean the end of walks, playtime, or cuddles.
Symptoms of diabetes in dogs and cats – how to recognize them
The most common signs of diabetes in pets include increased thirst (they’re constantly at the water bowl), frequent urination (sometimes with “accidents” in the house), weight loss despite a strong appetite, and general weakness or lethargy. Pet owners often ask how to recognize diabetes. The answer is simple – watch for changes in daily behavior. If your dog suddenly needs to go outside more often, or your cat is visiting the litter box more than usual, it’s a sign that something may be wrong.
Which pets are more prone to diabetes?
Not all pets have the same risk. In dogs, higher-risk breeds include Samoyeds, Yorkshire Terriers, Poodles, Labrador Retrievers, and Miniature Schnauzers. In addition to genetics, obesity and hormonal imbalances play an important role. In female dogs, hormone-related diabetes can occur, which is why spaying may sometimes be part of the treatment.
In cats, the main risk factors are obesity, lack of physical activity, and poor diet. In short, if your pet prefers the couch over playtime, it’s worth thinking about diabetes prevention.
Diagnosis: how veterinarians detect diabetes in pets
Elevated blood glucose levels are always a red flag. Normal values are similar to humans (dogs: 4.6–6.7 mmol/L, cats: 3.9–8.3 mmol/L). However, cats often experience temporary stress-related spikes in glucose levels, so additional laboratory testing is essential.
Diabetes in pets is diagnosed through blood and urine tests, ruling out other conditions, and monitoring glucose levels under controlled conditions. In some cases, hospitalization may be necessary to determine the correct initial insulin dose.
💡 Read our article on the importance of routine check-ups – they often help detect conditions like diabetes early.

Treatment of diabetes in pets: insulin, medication, and discipline
When we tell pet owners their animal will need insulin – twice a day, at the same time – panic is completely normal. “How will I do this?” “I’ll never manage!” – we hear it all the time. But trust us, you will. If people in their 70s can confidently give insulin injections to their pets, so can you.
Treatment for dogs typically involves insulin, while in cats there is sometimes an option of oral medication – although not all cats are suitable candidates. In some cases, cats can even go into remission after a period of treatment and manage the disease with diet alone. Unfortunately, this is not possible in dogs.
The most important part of treatment is owner education: how to measure glucose (usually with a glucometer using a drop of blood from the ear or paw), how to administer insulin correctly, and how to recognize signs of low blood sugar such as weakness, loss of consciousness, or seizures.
Diet and physical activity – a key part of treatment
Nutrition for diabetic pets must be carefully controlled.
A veterinary-prescribed diabetic diet is recommended, always given in consistent amounts and at the same time each day. Mixing different foods or constantly changing brands is not a good idea.
A proper diet plan for diabetic dogs and cats must be consistent and combined with controlled physical activity. Too much exercise can lower glucose levels, while too little is also harmful – balance is key.
Living with a diabetic pet – challenges and rewards
Yes, living with a diabetic pet requires discipline: regular glucose monitoring, insulin injections at the same time every day, keeping records, and regular veterinary check-ups. The alternative – uncontrolled diabetes – can lead to serious complications such as organ failure, blindness, and a shorter lifespan.
And it’s not always easy. It may mean waking up in the middle of the night, dealing with accidents, and saying goodbye to more than one rug.
But here’s the good news: once you get into a routine, it becomes manageable. And the reward? You get your life back – together with your pet. Walks, cuddles, and joyful moments continue, just with a bit more structure. And that effort pays off in years of shared happiness.
Prevention of diabetes in pets – what owners can do
Preventing diabetes comes down to a few simple but essential steps: maintaining a healthy body weight, ensuring regular physical activity, providing high-quality nutrition, and scheduling regular veterinary check-ups. By doing so, you reduce the risk and increase the chances that your pet will never have to face the “sweet troubles” of diabetes.
Diabetes in dogs and cats is not the end of the world, even if it sounds overwhelming at first. With early detection, proper diagnosis, and consistent treatment, your pet can continue to live a happy, active life. And we’re here to guide you every step of the way.
Together, we can ensure your pet lives a healthy, long, and happy life.
Saša Dujanović, DVM
Veterinary Clinic and Practice BUBA
(For medical questions or consultations, please contact us.)

Frequently asked questions (FAQ)
What is the life expectancy of a dog with diabetes?
With proper management, diet, and regular check-ups, dogs with diabetes can live long, high-quality lives – often nearly as long as healthy dogs.
Can a cat go off insulin?
Yes, some cats can achieve remission after treatment and a controlled diet, meaning insulin is no longer needed. This is not possible in dogs.
How do I give insulin to my dog?
Insulin is administered under the skin, usually twice a day at the same time. Your veterinarian will teach you the technique until you feel confident.
What is the best food for diabetic pets?
A veterinary-prescribed diabetic diet with controlled carbohydrates and high-quality protein is recommended. Consistency in feeding is key.
