Your fasting glucose of 5.5 mmol/l is still within normal limits. 6.0 -6.9 mmol/l is impaired fasting glucose and 7 mmol/l or more is indicative of diabetes. It is excellent that you are exercising and following a healthy diet. I think you can only have your fasting glucose re-checked in 6 months' time - the insulin test is not necessary to repeat. If you develop any symptoms in the interim then you need to go back to your doctor. Continue with your weight loss program - as this can definitely help you.
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