HbA1c measures the average amount of glucose attached to your red blood cells over roughly the previous three months. It is reported as a percentage, and it does not fluctuate with what you ate this morning — which is what makes it useful.
A result in the prediabetes range is a warning rather than a diagnosis of disease, and it is the point at which intervention works best.
Reading the number
The widely used thresholds are straightforward, though the exact cut-offs vary slightly between guidelines and your doctor will interpret them alongside your other results.
- Below 5.7% — normal range
- 5.7% to 6.4% — prediabetes
- 6.5% and above, on two occasions — consistent with diabetes
Why this matters more in the Gulf
The UAE has among the higher rates of type 2 diabetes globally, and the population here carries several risk factors at once: a large South Asian community, for whom risk rises at a lower BMI than in European populations; long summers that make outdoor activity genuinely difficult for months at a time; and a food environment built around convenience.
None of that is destiny. It does mean screening earlier and more often is reasonable here than the standard advice written for other countries would suggest.
What actually changes the number
Prediabetes is one of the few findings in medicine where lifestyle intervention has robust trial evidence behind it. Structured programmes combining modest weight loss and regular activity have repeatedly been shown to reduce progression to type 2 diabetes.
The specifics matter less than the consistency. Walking most days, reducing refined carbohydrate, and losing a modest amount of weight if you carry excess — these are unglamorous and they work.
- Modest weight loss, in the range of 5-7% of body weight
- Around 150 minutes a week of moderate activity
- Reducing sugary drinks and refined carbohydrate, rather than eliminating food groups
- Repeat HbA1c in three to six months to see whether it is moving
When medication enters the conversation
For some people — particularly those with a very high HbA1c within the prediabetes range, or additional risk factors — a doctor may discuss medication alongside lifestyle change. That is an individual decision based on your full picture, not a default.
Common questions
Can prediabetes be reversed?
Often, yes. HbA1c in the prediabetes range frequently returns to normal with sustained weight loss and activity, and there is good trial evidence that structured lifestyle change reduces progression to type 2 diabetes. It requires the change to be sustained rather than temporary.
Do I need to fast for an HbA1c test?
No. That is one of its advantages over a fasting glucose test — it reflects a three-month average, so it can be taken at any time of day.
How often should I be retested?
For a result in the prediabetes range, three to six months is typical so you can see whether your changes are working. Your doctor will set the interval based on how high the result was and what else is going on.
This article is general health information, not medical advice, and does not replace a consultation. Care at Smart Care Polyclinic is provided by DHA-licensed clinicians.