is 166 high for blood sugar

A blood sugar level of 166 mg/dL is considered high, especially if measured 2 hours after eating. Here’s a quick reference for blood sugar levels:

Condition Blood Sugar Range (mg/dL)

Normal (fasting) 70–99
Prediabetes 100–125
Diabetes 126 or higher
Post-meal (normal) Below 140

If your blood sugar is consistently 166 mg/dL or higher, it may indicate poor blood sugar control or diabetes. Consult your healthcare provider for further evaluation and management.