Carbohydrates in food turn into glucose after digestion, entering the blood and becomes blood glucose, the main source of energy for the body.
Insulin
Insulin is a hormone secreted by the pancreas. It helps blood glucose to enter the cells of different parts of the body to provide energy.
If the body functions normally, the blood glucose level will fluctuate in a normal range.
When a person lacks insulin or has resistance to insulin, the blood glucose will be unable to enter body cells and builds up in the blood. Sustained high blood glucose levels cause diabetes. Prolonged high blood glucose levels may damage blood vessels and organs, thus causing lesions.
