Before we start discussion about type of diabetes we must know what exactly is diabetes? Diabetes is a disorder of metabolism—the digestion system of our body for growth and energy. Almost every food we eat broken down to glucose, the form or sugar which is the fuel for our body. After digestion, glucose passes into the bloodstream, where it is used by cells for growth and energy. For glucose to get into cells, insulin must be present. Insulin is a hormone produced by the pancreas, a large gla.