This book is written to educate people who have developed diabetes, who have concern that they may develop diabetes because of family history of diabetes, and those who are curious to know about diabetes. Diabetes is so prevalent that it has become a universal topic for gossip, super-ceding the gossip for heart disease or cancer. Diabetes is a disease associated with abnormally high sugar in the blood. By definition, high sugar in the blood is due to lack of a hormone called insulin produced from pancreas. Some are born with low insulin level, giving rise to diabetes in childhood; whereas others decrease insulin production over the years and develop overt diabetes. Notwithstanding a variety of insulin preparations, plethora of oral antidiabetic agents, and enormous funding for research, diabetes care is at a stake.