Community Answer

Answered by Dr. Emily Carter, MD

A blood sugar level of 12 mmol/L (216 mg/dL) is considered high and may indicate hyperglycemia. Here’s what you need to know:

  • Normal Range: Fasting blood sugar should typically be between 4.0 to 5.4 mmol/L (72 to 99 mg/dL).
  • Prediabetes: Fasting blood sugar levels between 5.5 to 6.9 mmol/L (100 to 125 mg/dL) may indicate prediabetes.
  • Diabetes: A fasting blood sugar level of 7.0 mmol/L (126 mg/dL) or higher on two separate tests indicates diabetes.

If your blood sugar level is consistently 12 mmol/L, it’s important to consult with a healthcare professional for further evaluation and management. High blood sugar levels over time can lead to complications such as nerve damage, kidney disease, and cardiovascular issues.

Last updated: 1/12/2025

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