Type 1 diabetes is the most common form seen in dogs.

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In Type 1 diabetes, the body’s immune system attacks the pancreas, stopping it from producing insulin. This tends to be a rapid onset problem, seen more often in younger people and its onset is not affected by factors like lifestyle, diet and body weight. Injectable insulin is always needed to control this version of diabetes. Type 1 diabetes is the most common form seen in dogs. See more at Pets can get diabetes, just like their owners