Diabetes symptoms left untreated will eventually kill a cat. However, under the guidance of a veterinarian, the condition can be successfully managed so a cat can live a long and full life.
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Pancreatic Function
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A diet high in carbohydrates and low in protein, which constitutes most commercial dry foods, causes daily spikes in blood sugar until the cat's pancreas gives up on trying to produce enough insulin to compensate.
Hyperglycemia
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High blood sugar (glucose) occurs when the pancreas isn't producing enough insulin hormone to keep it in check, causing the glucose to spill over into the urine.
Thirst
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The extra glucose must pass through the kidneys, which will work harder to cleanse the body, making the cat urinate more. This causes excessive thirst.
Appetite
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A diabetic cat may have a greater appetite and still lose weight, or a decreased appetite that also results in weight loss.
Appearance
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Diabetic cats frequently seem lethargic and depressed. Their fur will lose its shine and silky texture.
Behavior
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End-stage diabetes will manifest in vomiting, rapid breathing, complete kidney shut-down, coma and death.
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