A metabolic abnormality known as diabetes mellitus (DM) is characterisedby elevated blood glucose levels and brought on by flaws in metabolism ofcarbohydrates, fats, and proteins. DM is a chronic condition that can affect people ofpractically any age. The most prevalent disease in the world is diabetes, which isbrought on by insulin's decreased sensitivity and pancreatic cell malfunction.In 1980, the World Health Organization (WHO) estimated that 108 millionpeople worldwide had diabetes. By 2014, that number had risen by 422 million.Around 1.5 million people died worldwide in 2012 as a result of diabetes. According toIDF, the number of people with diabetes is expected to reach over 629 million globallyby 2045.Diabetes was reported to have doubled in incidence over the course of threedecades from 4.7% in 1980 to 8.5% in 2010. Chronic long-term diabetes mellitus maycause microvascular and macrovascular complications that affect the kidney, eyes, andnerves and cause substantial morbidity and mortality.Due to the various secondary complications of diabetes mellitus brought onby persistent hyperglycaemia, it is imperative to keep blood glucose levels within thenormal range.Numerous methods can be employed to control and keep bloodglucose levels within the normal range, depending on the type of diabetes. Thetreatment for NIDDM concentrates on increasing insulin sensitivity, whereas thetreatment for IDDM concentrates on increasing insulin levels or imitating the effects ofinsulin. There are many techniques to control blood sugar levels, including reducingthe digestion and absorption of carbohydrates, increasing the uptake of glucose, inhibiting the metabolism of carbohydrates, and reducing gluconeogenesis.