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Thanks for your question.
If you don't take metformin, then what treatment has your doctor prescribed? What is your weight and height? Since when are you having diabetes? What is your HbA1c level?
If you are not on any medication and your fasting blood glucose is 145, then this is not normal but an increased fasting blood sugar which requires that you consult your doctor regarding this.
Fasting blood sugar of 145 is bad and may need treatment with medications in addition to the healthy diet and exercise.
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