Hearing that your dog has diabetes can be an overwhelming diagnosis for any pet parent. However, with the support of your veterinarian, diabetes is a manageable condition for many dogs, and understanding the causes, symptoms and treatment options can often help dog owners provide the best possible care for their diabetic companions.
Can Dogs Get Diabetes?
Diabetes mellitus (diabetes) is a serious and common disease that affects the way a dog’s body uses sugar, also known as glucose. Diabetes can affect dogs of any breed, age or size, although it is more common in middle-aged and older dogs. Female dogs, particularly unspayed females, are often diagnosed more frequently than males, and certain breeds, such as schnauzers, miniature poodles, dachshunds and beagles, are more at risk than others.
What Is Dog Diabetes?
Most dogs have insulin-dependent diabetes and insulin treatment is required. They are very similar to humans with type 1 diabetes in that the pancreas can no longer produce insulin. This means their blood sugar (glucose), which is a source of “fuel” or energy for the body’s cells, becomes elevated in the blood rather than being taken in by cells that need it. The glucose accumulation can, over time, cause serious health problems.
Without glucose, body cells experience an energy shortage, so the body breaks down muscle and stored fat to use for energy, resulting in weight loss. At the same time, excess glucose in the blood can damage important organs such as the kidneys, eyes, blood vessels and nerves.
Untreated diabetes in dogs can turn into a life-threatening complication called diabetic ketoacidosis. This is a medical emergency, so watch for signs like weakness, vomiting, decreased appetite, sweet or fruity breath, abnormal breathing, dehydration or collapse. If your dog is experiencing any of these symptoms, you should take them to an emergency vet immediately.
Overweight or obese dogs are at a greater risk of diabetes because excess body fat can interfere with the body’s ability to use insulin effectively. Additionally, some health conditions, such as pancreatitis, hormonal problems and long-term use of steroid medications, can increase the likelihood of developing diabetes. Dogs with diabetes are more prone to urinary tract infections (UTIs) because high blood sugar levels promote bacterial growth.
How Do Dogs Get Diabetes?
Diabetes in dogs develops when the body can no longer produce enough insulin to regulate blood sugar levels properly. Usually, it occurs as a result of progressive loss or dysfunction of insulin-producing pancreatic cells, leading to a condition similar to type 1 diabetes in humans. Immune-mediated damage may contribute in some cases. Without enough insulin, glucose cannot move from the bloodstream into the body’s cells for energy. As a result, sugar builds up in the blood.
Signs of Diabetes in Dogs
One of the first signs of diabetes in dogs is excessive thirst. Pet parents may notice their dog is drinking more water than normal and experiencing frequent urination. Increased hunger is another symptom due to not receiving enough energy from glucose. Even if your dog is eating more, many diabetic dogs lose weight because the body starts breaking down fat and muscle for fuel.
Other clinical signs of diabetes include poor haircoat, cloudy eyes or cataracts, chronic infection and lethargy. If glucose dips too low, your dog may show signs of weakness, confusion, seizures and even loss of consciousness, requiring emergency veterinary care. When glucose is too high, pets often drink and urinate more than usual and potentially develop other complications such as diabetic neuropathy.
Dog Diabetes Treatment
If you suspect your dog has diabetes, make an appointment with your veterinarian as soon as possible to avoid complications caused by high blood sugar. It is best to catch any underlying illness as early as you can. Your vet will likely perform blood work and a urine test to measure the amount of glucose. Diagnosis is based on persistent high blood glucose in both the urine and blood.
Treatment for canine diabetes generally focuses on regulating blood sugar levels through insulin therapy. Most diabetic dogs require daily insulin injections because their bodies cannot produce enough insulin naturally. To arrive at “just the right” insulin dose that keeps your dog’s diabetes controlled, periodic blood glucose monitoring is usually required. Insulin injections will typically be given twice a day around the time of their feeding.
In the past, dogs would typically spend a day at the veterinary clinic for a blood glucose curve. During that time, the veterinary staff would take blood glucose samples every two hours for up to 12 hours. The trouble with in-clinic glucose testing is that dogs often become stressed in the unfamiliar environment, which can artificially raise blood glucose levels. That’s why the American Animal Hospital Association recommends at-home glucose testing, when possible. Pets are usually less stressed at home, which means results will be more accurate. At-home testing can save you money. It can also help identify a hypoglycemic (low blood sugar) event, so your pet gets treatment faster. Continuous glucose monitors are available that attach to your dog’s back and allow you to monitor your dog’s glucose levels via your smartphone.
Your veterinarian will discuss your dog’s diet, exercise, insulin injections and schedule for vet visits. They will adjust the amount of insulin you give your dog based on follow-up blood tests. It can be an overwhelming time as a pet owner, but rest assured, your veterinarian will carefully train you on how to administer insulin or any other medicines necessary to get your dog on a healthier track. They will also share best-care practices, ensuring you head home feeling confident, prepared and fully equipped to support your dog.
Follow the veterinarian’s instructions carefully and continue to monitor your dog between their checkups. If your dog’s symptoms worsen or something seems out of the ordinary, don’t be afraid to call your veterinarian between routine visits. They’re there to help!
Managing Diabetes in Dogs
Even with blood glucose data, you should still watch your dog for signs that their diabetes may not be well controlled. It helps to keep a daily diary that lists information such as food and water consumption, insulin dose administered and general amount/frequency of urination. If possible, weigh your dog periodically. What kind of food your dog eats is important to managing their diabetes. Many diabetic dogs do well on a diet high in fiber and complex carbohydrates that includes high-quality protein. However, the diet should be individualized to the specific dog, and consistency is often more important than the exact diet type. Changes in weight, appetite, increased thirst, urination and even energy level should spark a call to your veterinarian.
Caring for a dog with diabetes can feel overwhelming at first, but understanding the condition is the first step toward helping your dog live a healthy and comfortable life. With proper treatment, monitoring and lifestyle adjustments, many diabetic dogs are able to continue enjoying relatively normal lives alongside their families.