What You Will Learn

Discover the basics of blood sugar—all based on authoritative health information from the National Library of Medicine. 

Get answers to common questions asked about blood sugar.

  • What is another name for blood sugar?
  • What is blood sugar?
  • What is diabetes?
  • How can you manage problems with blood sugar?
  • What happens if your blood sugar is too high?

Blood Sugar Explained From the Experts Video

This video brought to you by The NASH Facts™ project—an organization committed to bringing you expert information from trusted sources related to fatty liver disease and NASH.


Blood Sugar


What Is Another Name for Blood Sugar?

Blood sugar is also called blood glucose.


What Is Blood Sugar?

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.


What Is Diabetes?

Diabetes is a disease in which your blood sugar levels are too high. 


How Can You Manage Problems with Blood Sugar?

Over time, having too much glucose in your blood can cause serious problems. Even if you don’t have diabetes, sometimes you may have problems with blood sugar that is too low or too high.

Keeping a regular schedule of eating, activity, and taking any medicines you need can help manage problems with blood sugar.

If you have diabetes, it is very important to keep your blood sugar numbers in your target range. You may need to check your blood sugar several times each day. Your health care provider will also do a blood test called an A1C. It checks your average blood sugar level over the past three months.


What Happens if Your Blood Sugar Is too High?

If your blood sugar is too high, you may need to take medicines and/or follow a special diet. 


The NASH Facts™ Project would like to thank MedlinePlus from the National Library of Medicine and the NIH: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

The NIDDK translates and disseminates research findings to increase knowledge and understanding about health and disease among patients, health professionals, and the public.

Content produced by the NIDDK is carefully reviewed by NIDDK scientists and other experts.


What You Should Remember

  • Blood glucose is another name for blood sugar
  • You can manage problems with blood sugar by keeping a regular schedule of:



—Taking medicines (if prescribed)

  • If have diabetes and your blood sugar is too high, you may need to:

—Take medicines

—Follow a special diet

Take The Next Step

High blood sugar (glucose) is a associated with prediabetes and metabolic syndrome. These conditions are risk factors for NASH. Learn more about NASH Risk Factors.