what should fasting glucose levels be

Fasting glucose levels are an important indicator of blood sugar control. Here are the general guidelines:

• Normal: Less than 100 mg/dL (5.6 mmol/L)
• Prediabetes: 100 to 125 mg/dL (5.6 to 6.9 mmol/L)
• Diabetes: 126 mg/dL (7.0 mmol/L) or higher on two separate tests

These levels are typically measured after an overnight fast of at least 8 hours. If your fasting glucose levels are consistently high, it may indicate prediabetes or diabetes, and you should consult a healthcare professional for further evaluation and management.