A disorder of metabolism, diabetes is a complex group of diseases with a variety of causes. People with the condition have high blood glucose which is also called high blood sugar or hyperglycaemia.

Essentially diabetes effects the way the body uses digested food for energy. The digestive tract breaks down carbohydrates, sugars and starches present in food into glucose, a form of sugar. This glucose then enters the bloodstream and with the help of the hormone insulin, cells throughout the body can then absorb glucose and use it for energy.