What is a fasting blood sugar or fasting glucose levels?
Fasting blood glucose (sugar) level refers to your blood sugar levels when you don’t have any food or liquid in your stomach (besides water) for at least eight hours. For example, your fasting blood glucose might be measured when you wake up after a night of sleep. It is used as a test to diagnose diabetes. Diabetes.co.uk state that a fasting blood glucose target for most people living with diabetes is between 4.0 and 7.0 mmol/L.
HbA1C* | Fasting blood glucose (sugar)/ blood sugar before meals (mmol/L) | Blood sugar two hours after eating (mmol/L) | |
Target for most people with diabetes | 7.0% or less | 4.0 to 7.0 | 5.0 to 10.0 (5.0–8.0 if HbA1C* targets are not being met) |
Source:
* HbA1C is a measurement of your average blood sugar control for the last two to three months, and approximately 50% of the value comes from the last 30 days.
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