Cat Diabetes Mellitus: Insulin Management at Home

Feline diabetes mellitus requires daily insulin injections and careful glucose monitoring. With proper management, many diabetic cats achieve remission and an excellent quality of life.

Key Facts

Diabetes mellitus in cats is most often type 2, related to insulin resistance and beta-cell dysfunction
Obese cats and neutered male cats are at higher risk; indoor lifestyle and high-carbohydrate diets are contributing factors
Signs include increased thirst, urination, weight loss despite good appetite, and eventually weakness in the hind legs
Treatment involves insulin injections (typically twice daily), dietary changes to low-carbohydrate food, and regular glucose monitoring
Up to 60-80% of diabetic cats can achieve diabetic remission with proper management, especially if started early
Hypoglycemia from too much insulin is a medical emergency requiring immediate glucose supplementation

Welfare Considerations

Diabetes causes chronic suffering through excessive thirst, frequent urination, metabolic dysfunction, and eventual diabetic neuropathy causing hind limb weakness. Untreated diabetes leads to life-threatening ketoacidosis. With proper treatment, most diabetic cats feel significantly better - increased energy, normal appetite, and restored quality of life. The welfare burden of twice-daily injections is lower than many owners fear; most cats tolerate injections well with proper technique. Regular veterinary monitoring prevents the welfare harm of poorly controlled glucose levels.

What You Can Do

Learn proper insulin injection technique from your veterinarian - most cats tolerate this well once owners are confident
Monitor for hypoglycemia signs including weakness, wobbling, seizures - keep corn syrup on hand as emergency treatment
Switch to a high-protein, low-carbohydrate diet as recommended by your vet to improve insulin sensitivity
Monitor glucose at home using a glucometer and ear prick method to track control and detect remission
Keep a log of insulin doses, glucose readings, food intake, and clinical signs for veterinary review
Work toward weight loss if your cat is obese, as this significantly improves insulin sensitivity