What can we learn from the continuous glucose monitoring system (CGMS)?

William Lee Dubois
Endocrinology Diabetes & Metabolism

Having a CGM is like taking a graduate course in your own personal diabetes. You’ll learn things about your body, your medications, your diet, and your activity that you never dreamed.

CGM systems sample and display blood sugar every five minutes. That’s like taking 288 fingersticks per day! The flow of information out of a CGM system has been compared to watching a movie instead of looking at snapshots. And in fact, one complaint people new to CGM often have is that they are overloaded with information.

A CGM lets you see the flow of your blood sugar, which rises and falls much more during the day that you probably realized it does. It lets you see cause and effect. You can study how various foods affect your blood sugar, and how well your medications helped you out.

Continue Learning about Diabetes


Diabetes mellitus (MEL-ih-tus), often referred to as diabetes, is characterized by high blood glucose (sugar) levels that result from the body’s inability to produce enough insulin and/or effectively utilize the insulin. Diabetes ...

is a serious, life-long condition and the sixth leading cause of death in the United States. Diabetes is a disorder of metabolism (the body's way of digesting food and converting it into energy). There are three forms of diabetes. Type 1 diabetes is an autoimmune disease that accounts for five- to 10-percent of all diagnosed cases of diabetes. Type 2 diabetes may account for 90- to 95-percent of all diagnosed cases. The third type of diabetes occurs in pregnancy and is referred to as gestational diabetes. Left untreated, gestational diabetes can cause health issues for pregnant women and their babies. People with diabetes can take preventive steps to control this disease and decrease the risk of further complications.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.