Canine diabetes is manageable with committed owner involvement, and well-managed diabetic dogs can live comfortable, good quality lives.
Canine diabetes creates a welfare challenge that is primarily about management commitment rather than inherent severity. Uncontrolled diabetes causes progressive deterioration - persistent hyperglycemia damages blood vessels, nerves, and eyes, and causes the profound malaise of metabolic dysfunction. However, with appropriate insulin management and monitoring, most diabetic dogs achieve good glucose control and maintain excellent quality of life. The welfare burden is partly transferred to the owner relationship - twice-daily injections require consistent scheduling, dietary consistency is important for glucose stability, and emergency recognition of hypoglycemia is a safety requirement. The emotional commitment of managing a diabetic dog is significant, and owners who cannot consistently provide twice-daily insulin should honestly assess whether diabetic management is sustainable for their circumstances rather than inadequately managing a dog's disease.