Fasting Glucose – Fasting glucose measures your blood sugar after not eating for at least 8 hours – a core check for diabetes risk.
What Fasting Glucose measures
Fasting Glucose measures your baseline blood sugar, used to screen for prediabetes and diabetes alongside HbA1c.
Typical ranges
Below 100 mg/dL is normal; 100-125 mg/dL indicates prediabetes; 126 mg/dL or higher on repeat testing suggests diabetes. Reference ranges differ between laboratories and by age and sex, so always read your result against the range printed on your own report.
What high results can mean
Elevated blood sugar, indicating prediabetes, diabetes, or the need for follow-up.
What low results can mean
Low blood sugar (hypoglycemia), which has its own causes to evaluate.
How the test is done
A blood sample after 8+ hours of fasting (water is fine). At-home collection works well for this marker when the sample is processed by a certified lab.
FAQ
What is a normal Fasting Glucose level?
Below 100 mg/dL is normal; 100-125 mg/dL indicates prediabetes; 126 mg/dL or higher on repeat testing suggests diabetes. Your ideal target depends on your age, sex, and health history, so review results with a clinician.
What does a high Fasting Glucose result mean?
Elevated blood sugar, indicating prediabetes, diabetes, or the need for follow-up.
Can I test Fasting Glucose at home?
Yes. A blood sample after 8+ hours of fasting (water is fine). An at-home sample processed by a certified lab gives reliable results.
This article is educational and not a substitute for medical advice. Discuss your results with a qualified clinician.