Do blood sugar levels vary among people with diabetes?

Blood sugar levels not only vary from person to person with diabetes, but can vary in the same person from hour to hour or even more frequently. Exercising, drinking alcohol, eating and other factors can all affect your blood sugar levels. That's why keeping blood sugar under control in someone with diabetes can be tricky and may require frequent or even continuous blood glucose monitoring. If you have diabetes, talk to your doctor about the best ways to monitor your own blood sugar levels.
Blood glucose levels go up and down throughout the day and night in people with diabetes. High blood glucose levels over time can result in damage to your kidneys, eyes and nerves and may contribute to heart disease. Low blood glucose levels can make you feel shaky or pass out. But, you can learn how to make sure your blood glucose levels stay on target-not too high and not too low.

This answer is based on source information from the National Institute of Diabetes and Digestive and Kidney Diseases.

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.