Blood sugar, or glucose, is the main sugar found in your blood. It comes from the food you eat, and is your body’s main source of energy. Your blood carries glucose to all of your body’s cells to use for energy.
When you have diabetes, blood glucose levels can fluctuate quickly due to factors such as food, exercise, illness and stress. Regular blood glucose (BG) checks help give you a good picture of your overall blood glucose levels and guide you in making decisions that will keep your BGs as close to a healthy range as possible.« Back to Glossary Index