Setting Blood Sugar Goals

Chrome 2001
Aetna Intelihealth InteliHealth Aetna Intelihealth Aetna Intelihealth
. .
Harvard Medical School
Chrome 2001
Chrome 2001

Setting Blood Sugar Goals

Diabetes Type 2
Take Action Now
Setting Blood Sugar Goals
Setting Blood Sugar Goals
What blood sugar goals are best for you? Here's a guide to setting goals and testing your glucose.
InteliHealth Medical Content

Reviewed by the Faculty of Harvard Medical School

Setting Blood Sugar Goals

Your blood sugar control can be tracked using several different measurements:
  1. Fasting blood glucose is the measurement of blood sugar after you have not eaten for eight or more hours. Your morning glucose check at home can serve as your fasting glucose.
  2. Two-hour "postprandial" glucose is measured two hours after a meal. Most doctors recommend a bedtime sugar check at home. For most people, the timing will be close to two hours after dinner.
  3. Hemoglobin A1C is a useful laboratory blood test that helps to track your success in blood sugar control over a longer term. The test measures a type of red blood cell protein.

    Red blood cells are continuously produced by the bone marrow. Each red blood cell remains in your bloodstream for several months before it is replaced. Episodes of high blood sugar can adjust the proteins within red blood cells to a unique type of protein. This type is called the A1C.

    This adjustment is lasting. It's as if the red blood cell has been "tattooed" by high sugar levels. If you have high blood sugars through a large part of a two- to three-month period, you will have more cells with the A1C "tattoo." By checking your percentage of A1C, your doctor can get a good idea of your diabetes control in the last two to three months. However, your blood sugar levels in the two weeks before the test have the greatest effect on your A1C.

All of these tests are useful ways to monitor your diabetes. They also can show how well your treatment is working. In general, the closer to normal you are able to get each test, the better off you will be. This is true as long as you are not having side effects or low blood sugar episodes from your treatment.
Respected groups of experts have set goals for optimum blood sugar control. Here's what they recommend:



Fasting glucose goal

Two-hour/bedtime goal

Hemoglobin A1C goal

American Diabetes Association
80 to 130 mg/dl*
Less than 180 mg/dl*

Set your individual goal:

  • For most people, less than 7%.
  • If you are young, you don't have heart disease and you don't have hypoglycemia problems (low sugars), your doctor might choose a lower goal (less than 6.5%).
  • Your doctor can choose a higher goal (such as less than 8%) for people with hypoglycemia problems (low sugars), elderly age or multiple medical problems, or if getting to your goal is requiring high doses of insulin or more medication than you can easily manage.
American College of Endocrinology and
American Association of Clinical Endocrinologists
Less than 110 mg/dl*
Less than 140 mg/dl*

Set your individual goal:

  • For most people, less than 6.5%.
  • If you are healthier than average, your goal can be closer to normal (normal is less than 5.4% according to this group).
  • If you have medical problems in addition to diabetes, your doctor can choose a higher goal.
*Measurements are in milligrams per deciliter of blood. The numbers for fasting and two-hour glucose goals are for levels of "whole blood" glucose. This is the type measured by most home glucose monitor machines. A doctor's laboratory measures "plasma glucose." These numbers should be slightly higher than the numbers shown here.


For most people with type 2 diabetes, achieving these goals for "optimum" or "tight" blood sugar control takes effort. It often requires more than one medicine. As you set your personal goals, read about what is gained through tight blood-sugar control.


blood sugar,glucose,diabetes,red blood cell,hemoglobin
Last updated March 06, 2015

    Print Printer-friendly format    
This website is certified by Health On the Net Foundation. Click to verify.