Dog Diabetes Mellitus Long-Term Management

Diabetes mellitus in dogs requires lifelong insulin therapy and careful monitoring, with good management enabling an excellent quality of life for affected dogs.

Key Facts

Canine diabetes mellitus most commonly results from insulin-deficient Type 1-like disease
Intact females are overrepresented due to progesterone-driven insulin resistance during dioestrus
Signs include polyuria, polydipsia, polyphagia, and weight loss despite appetite
Treatment requires twice-daily insulin injections at consistent intervals aligned with feeding
Dietary management using consistent, moderate fibre content food stabilises glucose curves
Hypoglycaemia from insulin overdose is an acute emergency requiring immediate intervention

Welfare Considerations

Uncontrolled diabetes causes chronic suffering through the physiological effects of hyperglycaemia and its complications including cataracts, recurrent infections, and neuropathy. Well-controlled diabetic dogs, by contrast, can enjoy an excellent quality of life with normal activity levels. The welfare burden of twice-daily injections is generally low: most dogs rapidly habituate to the routine and experience injections as minor events. Owner commitment and routine are the primary determinants of successful diabetic management. Complications from poor control, particularly diabetic ketoacidosis, cause severe acute suffering and are largely preventable.

What You Can Do

Establish a consistent feeding and injection schedule and maintain it daily without variation
Learn to recognise and treat hypoglycaemia: keep a glucose source readily available
Monitor your dog weight and clinical signs regularly and report changes to your vet promptly
Ensure regular glucose curve monitoring to guide insulin dose adjustments
Neuter intact female dogs at risk to eliminate progesterone-driven insulin resistance