Diabetes mellitus is the absence or inadequate amount of insulin in the body. Another case would be, that insulin resistance, in which the body cannot use insulin effectively. The body needs insulin to convert the sugar intake into energy. Once of the causes of diabetes is the absence of insulin in the blood.Normally, it is produced by the pancreas. However, due to the absence of insulin, sugar cannot enter the cells; instead the glucose accumulate in the bloodstream, resulting to high levels of glucose in the blood.

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