A warning, not a sentence
Prediabetes is a stage where blood sugar is higher than healthy but has not yet reached the level that defines type 2 diabetes. Many people have never heard the term, and many who have it do not know, because it rarely causes symptoms.
The most important thing to understand about prediabetes is that it is reversible for many people. It is the body raising a hand and saying that something needs attention, while there is still plenty of time to respond.
How prediabetes is measured
Doctors usually look at one of a few blood tests.
Fasting glucose
This measures blood sugar after you have not eaten for several hours, usually overnight. A normal result is below 5.6 mmol/L. The prediabetes range is roughly 5.6 to 6.9 mmol/L. Diabetes is diagnosed at 7.0 mmol/L or above on repeated testing.
HbA1c
This reflects your average blood sugar over about three months, so it is less affected by what you ate that morning. Prediabetes generally falls in the range of about 5.7 to 6.4 percent, with diabetes at 6.5 percent or higher.
Your doctor will interpret these numbers alongside your overall health, so use these figures as a general guide rather than a strict rule.
Why it happens
Prediabetes develops when the body becomes resistant to insulin, the hormone that moves sugar out of the blood and into cells. The pancreas compensates by making more insulin, but over time it cannot fully keep up, and blood sugar drifts upward.
The usual contributors are familiar ones: diets high in refined carbohydrates and sugary drinks, limited physical activity, extra weight around the middle, poor sleep, and a family history of diabetes. In Mauritius, where inherited risk is higher, these everyday factors can tip people into prediabetes earlier than they might expect.
Why this window matters so much
Large, well run studies have shown that people with prediabetes can dramatically lower their risk of progressing to type 2 diabetes through lifestyle changes. In several trials, modest weight loss and regular activity reduced the risk of developing diabetes by more than half. That is a striking result for changes that do not require any medication.
Acting during the prediabetes window also protects your blood vessels, heart, and nerves, which can begin to be affected even before full diabetes develops.
What to do if you have prediabetes
You do not need a dramatic overhaul. Steady, sustainable changes work better than crash efforts that do not last.
Adjust what is on your plate
Reduce sugary drinks and refined snacks, fill half your plate with vegetables, choose whole grains over white rice and bread where you can, and include protein and healthy fats to slow how quickly sugar enters your blood.
Move most days
Aim for regular activity such as brisk walking. A walk after meals is especially helpful, because working muscles pull sugar out of the blood. Even short sessions add up.
Aim for a modest weight change
If you carry extra weight, losing even a small percentage of body weight can meaningfully improve blood sugar. The goal is direction, not perfection.
Protect your sleep
Poor or short sleep worsens insulin resistance. A regular sleep routine supports better blood sugar control.
Keep checking your numbers
Because prediabetes is silent, re testing matters. Ask your doctor how often you should repeat your fasting glucose or HbA1c so you can see whether your changes are working. Watching a number improve can be powerfully motivating.
A note on getting support
This article is general information and not a substitute for personal medical advice. If a test has shown prediabetes, or you suspect you may be at risk, speak with your doctor or local health centre. They can confirm the diagnosis, rule out other issues, and help you build a realistic plan.
Prediabetes is one of the clearest second chances medicine offers. The window is open, and what you do during it can change the years ahead.
Stopping diabetes early supports a longer, healthier life. Explore the wider Healthspan health ecosystem.
