Type 1 diabetes mellitus is caused by

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Type 1 diabetes mellitus is caused by an autoimmune disease in which the body's immune system attacks and destroys the cells in the pancreas that produce insulin. This causes a deficiency of insulin, which is essential for glucose metabolism, and results in high blood glucose levels. Excess sugar in the diet and obesity may contribute to the development of type 2 diabetes, but they are not the primary causes of type 1 diabetes. Aging does not cause diabetes but may increase the risk of developing type 2 diabetes. A defect in antidiuretic hormone secretion can cause diabetes insipidus, which is a different condition from diabetes mellitus.

Type 1 Diabetes Mellitus Is Caused by