○ Diabetes mellitus is characterized by constant high levels of blood glucose (sugar).

○ Diabetes is a metabolic disorder where in human body does not produce or properly uses insulin, a hormone that is required to convert sugar, starches, and other food into energy.

○ Desired blood sugar of human body should be maintained between 70 mg/dl -110 mg/dl at fasting state. If blood sugar is less than 70 mg/dl, it is termed as hypoglycemia and if more than 110 mg /dl, it’s hyperglycemia.