Suddenly constantly thirsty? Here's how to recognize cat diabetes – and feed them properly.

PD-Magazine-Cat-Diabetes-01-Header-250603

Diabetes in cats is not that rare. It is important to recognize the symptoms early – and to change the food in time. We will show you what matters.

05.06.2025

Early Detection: Symptoms of Diabetes in Cats

Diabetes in cats often manifests gradually – and is therefore easily overlooked. Pay special attention to these warning signs:

- Increased thirst – your cat suddenly drinks much more than usual

- Frequent urination – the litter box is visited significantly more often

- Increased appetite with simultaneous weight loss

- Tired, lethargic, less active than before

- Dull or lackluster coat

- Gait changes – some cats walk "flat" on their heels (plantigrade gait)

Some of these symptoms can also occur with other conditions – and are not exclusively an indication of diabetes. For example, increased thirst or frequent urination can also be seen with a →chronic kidney disease.

To find out what exactly is behind the complaints, your veterinarian can quickly clarify the situation with just a few tests. Usually, a combination of blood and urine tests is sufficient. Particularly important: the fructosamine level – it shows how high the blood sugar has been over the last 1–3 weeks, without stress distortion like with a single measurement.

Diabetes in Cats: Types & Differences Explained Simply

To better categorize the symptoms, it is worthwhile to look at the different forms of diabetes that can occur in cats. Not every diabetes is the same – and depending on the type, the treatment also differs.

PD-Magazine-Cat-Diabetes-02-Graphic-250604

[TRANSLATION ERROR] Nicht jeder Diabetes ist gleich: Die Übersicht zeigt, wie sich Typ-1-, Typ-2- und sekundärer Diabetes bei Katzen unterscheiden – inklusive Merkmale und Behandlung.

No matter which type is diagnosed: A timely diagnosis and a tailored therapy are crucial – of course, in close coordination with your veterinarian.

These Risks Are Present with Untreated Cat Diabetes

If diabetes in cats is not recognized or treated for an extended period, it can affect health – just like in humans. A persistently elevated blood sugar level affects various organs and throws the metabolism out of balance. Typical complications can include:

- Strained kidneys due to constant sugar excretion

- Vision problems that can develop in some cats

- Nerve weaknesses, for example, in the hind legs

- In rare cases: a so-called ketoacidosis – a metabolic derangement that is life-threatening for your cat and must be treated by a veterinarian

The good news: Those who observe their cat closely and consult a veterinarian at the first signs can take action early. With the right treatment, daily life with diabetes can often be managed comfortably.

Cat Diabetes in Daily Life: What You Should Consider

The diagnosis of diabetes is initially a shock – no question about it. But the good news is: With a bit of routine and attention, daily life with a diabetic cat can be well managed.

Regularity is key. Fixed feeding times, clearly structured daily routines, and – if necessary – timely administration of insulin help keep blood sugar levels as stable as possible.

Observation helps. Many cats show through their behavior when something is wrong: They drink more, suddenly sleep a lot, or seem less active. Those who know their cat often notice such changes early – and can react in time.

Avoid stress. Changes in daily life, loud environments, or frequent visitors can negatively affect metabolism. A quiet retreat, familiar routines, and a little patience are especially beneficial for your cat right now.

Don't forget: Even though a few adjustments are necessary – many cats with diabetes lead a completely normal, happy life. And you will quickly notice: With a bit of organization, it works really well.

PD-Magazine-Cat-Diabetes-03-Image-250606

[TRANSLATION ERROR] Blutzuckermessung bei Katzen: Am Ohr lässt sich der Blutzucker deiner Mieze einfach und zuverlässig kontrollieren – wichtig für ein sicheres Diabetes-Management zu Hause.

Food for Cats with Diabetes: How to Properly Support Your Cat

Nutrition plays a key role in cats with diabetes – it helps keep blood sugar levels as stable as possible and optimally adjust the insulin amount. It's not just about the right ingredients, but also about the way of feeding.

A protein-rich, low-carbohydrate diet is important. Studies show: The more high-quality protein and the fewer easily digestible carbohydrates end up in the bowl, the better diabetes can be managed – often even with a lower insulin amount.

The "how" is also crucial:

- Regular feeding times help minimize blood sugar fluctuations.

- Many small portions spread throughout the day – ideally 10 to 20 – correspond to the cat's natural feeding behavior and relieve the metabolism.

- If you are injecting insulin into your cat, it is important that she eats something beforehand. Otherwise, it can lead to a life-threatening hypoglycemia.

Cats with normal weight can usually be fed normally. However, if your cat is →overweight or underweight, the weight should be adjusted gradually – gently and under the guidance of your veterinarian.

If you are unsure which food is suitable for your cat, our →individual consultation can help you better assess your cat's needs.

409a390a-d74f-424f-a657-3178ed01a278
Michaela Väth