Many people who suffer from diabetes wonder what life would be like with a constantly acceptable blood glucose level. Diabetes Mellitus usually referred to simply as diabetes can be any one of a group of metabolic diseases in which the affected person has a measured blood glucose which is outside the range for an acceptable blood glucose level. This is as a result of either the body does not produce enough insulin, or the cells do not respond to in a normal fashion to the insulin which is produced. Glucose, which is used for energy by every cell of the body, can also become quite toxic if levels build up in the blood.