Fasting Glucose
Fasting glucose is your blood sugar after at least 8 hours without food. It's one of the standard screening tests for prediabetes and diabetes.
Your reading
70–99 mg/dL is normal. 100–125 mg/dL is classified as prediabetes and 126 or above, on two tests, as diabetes. A bad night's sleep, stress or illness can raise it for a day, so a single borderline result is usually repeated, often with HbA1c.
What may help
- —Regular exercise, including a short walk after meals
- —Fewer refined carbs and sugary drinks
- —Enough sleep and managing stress
When to talk to a doctor
If fasting glucose is 100 or above, especially on more than one test.
Common questions
What is Fasting Glucose?
Fasting glucose is your blood sugar after at least 8 hours without food. It's one of the standard screening tests for prediabetes and diabetes.
What is a normal Fasting Glucose level?
Daygo uses 70–99 mg/dL as the reference range. 70–99 mg/dL is normal. 100–125 mg/dL is classified as prediabetes and 126 or above, on two tests, as diabetes. A bad night's sleep, stress or illness can raise it for a day, so a single borderline result is usually repeated, often with HbA1c.
How can I improve my Fasting Glucose?
Regular exercise, including a short walk after meals. Fewer refined carbs and sugary drinks. Enough sleep and managing stress.
When should I see a doctor about Fasting Glucose?
If fasting glucose is 100 or above, especially on more than one test.
Source: MedlinePlus (NIH). Reference ranges are standard adult intervals — your own lab may report a different range for your age, sex, or method. This isn't medical advice; always go by the range on your actual results and talk to a clinician about anything that concerns you.