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Diabetes in cats
Quick answer
Feline diabetes mellitus occurs when the body cannot regulate blood sugar — usually because of insufficient insulin. Signs include **increased drinking and urination, weight loss, and increased appetite**. Most cats need twice-daily insulin injections and a low-carbohydrate diet; many overweight cats achieve **remission** with consistent treatment and weight loss.
Key takeaways
- Increased thirst and urination, weight loss despite a good or increased appetite, lethargy, and a plantigrade stance (walking on the hocks) are common signs. Advanced cases develop vomiting and weakness.
- Many overweight cats achieve remission with insulin therapy, weight loss, and a high-protein low-carbohydrate diet. Remission means no insulin needed — but relapse is possible without ongoing diet management.
- Twice-daily insulin injections, consistent low-carbohydrate diet, weight management, and regular glucose monitoring form the foundation of treatment. Oral medications used in people are not effective in cats.
The full guide
Causes, symptoms, treatment options and when to call your vet — in the complete plain-English guide.
Frequently Asked Questions
- What are the signs of diabetes in cats?
- Increased thirst and urination, weight loss despite a good or increased appetite, lethargy, and a plantigrade stance (walking on the hocks) are common signs. Advanced cases develop vomiting and weakness.
- Can feline diabetes be cured?
- Many overweight cats achieve remission with insulin therapy, weight loss, and a high-protein low-carbohydrate diet. Remission means no insulin needed — but relapse is possible without ongoing diet management.
- How is diabetes treated in cats?
- Twice-daily insulin injections, consistent low-carbohydrate diet, weight management, and regular glucose monitoring form the foundation of treatment. Oral medications used in people are not effective in cats.