Whenever this seasonal fruit is available in the market, try to include it in your diet as it can be very effective for the pancreas. Else you can make a powder of dried seeds of Jambul fruit and eat this powder with water twice a day. This fruit is native to India and its neighboring countries but you can find it at Asian markets and herbal shops.
Both type 1 and type 2 diabetes mellitus are chronic conditions that can only be managed using insulin, anti-diabetes medications, lifestyle changes, etc., but cannot be cured. Gestational diabetes generally resolves on itself after the delivery. If not managed properly, diabetes can cause several other complications, like hypoglycemia, diabetic ketoacidosis, nonketotic hyperosmolar coma, etc. Other serious and long-term complications include cardiovascular diseases, chronic renal failure, diabetic retinopathy, etc.
According to the American Diabetes Association, nearly 21 million people in the United States have diabetes, with about 90 percent to 95 percent having type 2 diabetes. Sugar, in the form of glucose, is the main source of fuel for body cells. The hormone insulin allows glucose in the blood to enter cells. In type 2 diabetes, either the body doesn't produce enough insulin or cells are resistant to effects of insulin.
In other words, we can say that diabetes is a continual metabolic disorder that prevents the body from utilizing glucose totally or partially. The disorder is characterized by raised glucose absorption in the blood. When body does not have enough insulin, it cannot use or store glucose, which raises the level of glucose in the body. Diabetes is not curable, but controllable. There are several methods and remedies which can be used to tame this dreadful disease. Such is its dreadfulness that it is one of the major causes of disability and death in USA. In most of the cases, diabetes further leads to other critical diseases, like heart failure, obesity, cardiac arrest, etc. 
Metformin is a biguanide drug that increases the sensitivity of the body’s cells to insulin. It also decreases the amount of glucose produced by the liver.. In 1994, the FDA approved the use of the biguanide called metformin (Glucophage) for the treatment of type 2 diabetes. Today, this is still typically the first drug prescribed for type 2 diabetes.