Diabetes in Cats

Treatment and Monitoring

This article is for educational purposes only and does not promote or advertise prescription-only veterinary medicines. Any treatment should only be used under veterinary direction and supplied against a valid veterinary prescription where required.

Diabetes mellitus is a common endocrine disease in cats.

With appropriate treatment and monitoring, many diabetic cats can live long and comfortable lives. In some cases, particularly when diagnosed early, diabetic remission may be possible.

This guide explains:
  • What diabetes in cats is
  • Common symptoms
  • Diagnosis
  • Insulin treatment approaches
  • Monitoring and long-term care

What Is Diabetes in Cats?

Diabetes occurs when the body cannot properly regulate blood glucose levels.

In many cats, insulin resistance develops, meaning the body does not respond effectively to insulin. Over time, insulin production may also become insufficient.

Common Symptoms

  • Increased thirst
  • Frequent urination
  • Weight loss
  • Increased appetite
  • Lethargy

Diagnosis

  • Blood glucose testing
  • Urine testing
  • Clinical assessment

Persistently elevated glucose levels in both blood and urine, alongside compatible clinical signs, support a diagnosis of diabetes.

Treatment – Insulin Therapy

Most diabetic cats require insulin injections to regulate blood glucose levels.

Commonly used veterinary insulins in the UK include protamine zinc insulin (ProZinc) and porcine insulin zinc suspension (Caninsulin). The choice depends on the individual patient and veterinary judgement.

Insulin is a prescription-only veterinary medicine and must be used under veterinary supervision with individualised dosing.

Insulin Delivery Systems

Devices such as insulin pens may be used to simplify administration and improve dosing accuracy for some owners.

Monitoring Blood Glucose

Monitoring is essential for safe and effective diabetes management.

Some owners perform home glucose monitoring alongside regular veterinary checks to help guide treatment adjustments.

Blood Glucose Monitoring

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Urine Monitoring

Urine testing can provide additional information, particularly for detecting glucose trends and ketones.

Urine Collection Kit

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Urine Test Strips

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Long-Term Care

Successful management typically involves:

  • Consistent insulin administration
  • Regular feeding routines
  • Ongoing monitoring
  • Routine veterinary review

In some cats, early and well-controlled treatment may lead to diabetic remission, where insulin is no longer required. However, ongoing monitoring remains essential.

Key takeaway:

Diabetes in cats is a manageable condition with appropriate treatment, monitoring, and veterinary guidance. Early diagnosis improves the chance of stabilisation and, in some cases, remission.

Vetalia is an independent UK vet-led provider of veterinary medicines, operating in accordance with regulations set by the Veterinary Medicines Directorate and the Royal College of Veterinary Surgeons.

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