By Dial A Vet Veterinary Team
Diabetes mellitus in cats is a common endocrine disease, often associated with insulin resistance and excess body weight. This page is the primary overview. Related: feline diabetes symptoms.
Some cats can enter diabetic remission with careful veterinary management, especially when diabetes is caught early and diet and insulin plans are closely supervised. This article does not diagnose your cat or prescribe insulin or doses.
Key takeaways
- Typical signs include drinking and urinating more, eating more while losing weight, and sometimes a plantigrade (hock-dropped) stance from nerve effects.
- Obesity, indoor lifestyle, and certain medical or medication histories raise risk.
- Diagnosis relies on persistent hyperglycemia with glucosuria and supporting tests interpreted by a veterinarian.
- Management usually combines insulin (when prescribed), diet strategy, weight loss when needed, and monitoring.
- Not eating, vomiting, weakness, or breathing changes in a diabetic cat can be an emergency.
What feline diabetes is
Cats often develop a form similar to type 2 diabetes in people: tissues respond poorly to insulin, and insulin production can later decline. High blood glucose spills into urine and drives thirst and large urine volumes. Chronic high glucose can injure nerves, eyes, and other organs and predisposes to urinary infections.
Common signs
- Increased thirst and larger litter-box clumps or accidents
- Increased appetite with weight loss or muscle wasting
- Lethargy, unkempt coat
- Walking with hocks closer to the ground (diabetic neuropathy)
- Vomiting, dehydration, or collapse in crises such as DKA
For a symptom-focused checklist, see feline diabetes symptoms.
Diagnosis overview
- History, exam, and body condition scoring
- Blood glucose and chemistry panel
- Urinalysis for glucose, ketones, and infection
- Fructosamine or repeated measurements when stress hyperglycemia is possible (cats can raise glucose from stress alone)
Management themes (clinic-directed)
- Veterinary-prescribed insulin with individualized follow-up
- Diet plans often emphasizing moisture and appropriate carbohydrate profiles; many clinics prefer canned therapeutic or carefully chosen high-protein diets
- Gradual weight loss for overweight cats
- Home monitoring of appetite, water, litter-box output, energy, and clinic-guided glucose checks
- Discussion of remission: some cats temporarily or longer-term no longer need insulin under veterinary supervision only
Never adjust insulin based on internet protocols. Stopping insulin abruptly without veterinary guidance can be dangerous.
When to seek urgent care
- Anorexia, repeated vomiting, marked lethargy
- Labored breathing, sweet/acetone-like breath, or known ketones
- Trembling, seizures, or extreme weakness after insulin (possible hypoglycemia)
FAQ
Can cats go into remission?
Yes, some do, especially with early intervention and diet/weight control. Remission is declared and managed only by your veterinarian; it is not guaranteed.
Is dry food always wrong?
Not always, but many diabetic cats benefit from higher-moisture feeding strategies. Your veterinarian should approve the specific diet.
Talk with a vet
Crisis signs: emergency hospital. Educational questions: dialavet.com.
References
- AAHA Diabetes Management Guidelines for Dogs and Cats.
- Merck Veterinary Manual. Diabetes Mellitus in Dogs and Cats.
- International Society of Feline Medicine (ISFM) diabetes resources.
- VCA Animal Hospitals. Diabetes Mellitus in Cats.
Disclaimer: Educational only. Not a substitute for veterinary diagnosis or treatment. Do not change prescription therapy without your veterinarian.
