The body of a person with diabetes cannot properly process food for use as energy. When we eat, most of the food is broken down into glucose, which the body uses for growth and energy. A hormone called insulin moves glucose from the bloodstream into individual cells, giving each cell the energy it needs to function.
In people with diabetes, one of two problems can occur:
The end result is too much glucose, or sugar, in the bloodstream.
Consistently high blood sugar levels can lead to serious health problems, including blindness, kidney failure and nerve pain.
There are four main types of diabetes.