Senior Cat2026-03-09Carelogy編集部
Diabetes in Cats: Symptoms, Insulin Therapy, Diet & Achieving Remission
Diabetes in cats: early symptoms, insulin injection guide, low-carb diet management, and how to achieve diabetic remission. Vet-supervised.
The Bottom Line: Diabetic Remission Is Possible in Cats
Unlike dogs, cats with diabetes have a real shot at remission. With prompt, appropriate treatment, up to 50–60% of diabetic cats achieve remission — meaning they maintain normal blood sugar without insulin injections. The window matters, though: to maximize the chance of remission, start proper insulin therapy and dietary management as soon as possible after diagnosis, ideally within the first few weeks. The sooner the pancreas gets relief, the better it can recover.
Early Symptoms of Diabetes in Cats
The four classic early signs of feline diabetes are:
- Increased thirst (drinking excessive water)
- Increased urination (larger or more frequent clumps in the litter box)
- Weight loss despite eating well (the body cannot use glucose properly)
- Ravenous appetite (constantly begging for food)
As the disease progresses, you may notice your cat walking flat on their hocks (a plantigrade stance caused by diabetic neuropathy), lethargy, and a dull, unkempt coat.
Cats at highest risk: Obese cats (the single biggest risk factor), middle-aged and older cats (8+), males, Burmese, and cats with a history of long-term steroid use.
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What Insulin Therapy Actually Looks Like
Insulin types: Glargine (Lantus) and ProZinc (PZI) are the most commonly used in cats. Glargine is associated with higher remission rates.
How to inject: Twice daily, 12 hours apart, as a subcutaneous injection. You pinch the skin between the shoulder blades and insert the needle. The needles are extremely fine (29–31 gauge), and most cats barely notice.
Blood glucose monitoring: Follow your vet's guidance — this may include at-home glucose testing or periodic fructosamine blood tests to evaluate long-term control.
Hypoglycemia emergency: If your cat becomes wobbly, has seizures, or seems disoriented, rub honey or corn syrup on their gums immediately and rush to the vet.
Diet Management: Low-Carb Feeding Is Key
Cats are obligate carnivores, and a high-protein, low-carbohydrate diet is ideal for managing feline diabetes.
Target: Wet food with less than 12% carbohydrates on a dry-matter basis. Since dry kibble is typically carb-heavy, switching to a primarily wet food diet is strongly recommended.
Recommended foods: Hill's m/d, Royal Canin Diabetic, or high-quality grain-free wet foods.
Meal timing: Feed at the same time as each insulin injection. Stick to two scheduled meals per day.
Combined with weight management strategies, getting your cat to a healthy body condition is a critical factor in achieving and maintaining remission.
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