'In essence, diabetes is a defect in converting blood sugar into energy. The defect in type 1 diabetes is due to a failure of insulin production by the pancreas, the endocrine gland that is also the source of digestive enzymes.
In Type 2 diabetes, the defect is due to an abnormal response to insulin, in which the cells of the body are unable to take up the glucose they need for basic metabolic functions. This causes high levels of blood sugar that cannot be used effectively. In both types, impaired glucose uptake occurs, although the mechanisms are different.'
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