Where does the glucose in your blood come from?
The glucose in your blood comes from the carbohydrates in your food. Carbohydrates include sugar and starchy foods such as bread, pasta and rice. When you eat, the carbohydrates pass from your stomach into your small intestines. The carbohydrates are then broken down into glucose. Your body converts some of the glucose into a chemical called “glycogen”, which it stores in your liver and muscles. The remaining glucose will travel through the bloodstream to fuel your body’s cells and organs. This is the glucose you are measuring when you self-test your blood glucose level. Your brain and the cells in your body need the energy from glucose to function, so it is important that your blood glucose level is within a healthy range.