What is a fasting blood sugar or fasting glucose level?

Fasting blood glucose (sugar) level refers to your blood sugar levels when you don’t have any food in your stomach for at least eight hours. For example, your fasting blood glucose might be measured when you wake up after a night of sleep. The Diabetes Canada Clinical Practice Guidelines recommend that a healthy fasting blood glucose target for most people living with diabetes is a range between 4.0 and 7.0 mmol/L.
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 A1C* targets are not being met)
* A1C 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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