Insulin

Blood Glucose: A Guide to Managing Your Health

Blood glucose is the amount of sugar (glucose) present in your bloodstream. It serves as the primary source of energy for your body’s cells, including your brain. To function optimally, your body needs to maintain blood glucose levels within a narrow range, typically between 70 to 130 milligrams per deciliter (mg/dL) before meals and less than 180 mg/dL two hours after eating, as per the American Diabetes Association guidelines.