Definition: It is a group of metabolic disorders that is characterized by hyperglycemia which is due to a relative or absolute deficiency in insulin. There is usually a defect in insulin secretion, a defect in insulin action or a combination of both. Criteria for diagnosis: 1) An Fasting Plasma Glucose ≥ 7.0 mmol/L (126 mg/dL), 2) A Plasma Glucose ≥ 11.1 mmol/L (200 mg/dL) 2 h after an oral glucose tolerance test, 3) An HbA1c ≥ 6.5% or 4) A Random Plasma Glucose concentration ≥ 11.1 mmol/L (200 mg/dL) accompanied by classic symptoms of DM (polyuria, polydipsia, polyphagia, weight loss). Note: 1) Fasting means no calorie intake for the past 8 hours. 2) For the glucose tolerance test, we must use 75 g of anhydrous glucose dissolved in water. 3) The diagnostic HbA1c test should be performed using a method certified by the National Glycohemoglobin Standardization Program (NGSP) and standardized or traceable to the Diabetes Control and Complications Trial (D