Feline diabetes mellitus is increasingly prevalent but manageable — with appropriate treatment many cats achieve diabetic remission, dramatically improving welfare outcomes.
Feline diabetes causes genuine welfare suffering when poorly controlled — chronic fatigue, glucose toxicity to nerves and organs, and the distress of hypoglycemic episodes. Well-controlled diabetes, by contrast, enables cats to live normal quality lives with appropriate medical management. The welfare-positive aspects of feline diabetes management compared to many chronic conditions are the genuine possibility of remission and the availability of effective home monitoring tools. The welfare cost of poorly managed diabetes is compounded by owner difficulties with twice-daily insulin injections — cats that resist injections experience additional handling stress. Owner education about low-carbohydrate diet, injection technique, and home glucose monitoring dramatically improves treatment adherence and welfare outcomes. Obesity prevention represents the highest-value welfare intervention for reducing feline diabetes incidence at population level.