what is fasting blood glucose

Fasting blood glucose (FBG) is a test that measures your blood sugar levels after you have not eaten for at least 8 hours. It is commonly used to diagnose prediabetes and diabetes. Here’s what the results typically mean:

• Normal: Less than 100 mg/dL
• Prediabetes: 100 to 125 mg/dL
• Diabetes: 126 mg/dL or higher on two separate tests

This test is often done in the morning before breakfast. It helps healthcare providers understand how well your body manages blood sugar levels over time.