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Prediabetes Explained: The Warning Window | Kyros

Prediabetes means blood sugar is high but not yet diabetes — a crucial warning window. What it means, why it matters, and what can be done.

2 min read

Reviewed by a Kyros specialist

Endocrinology / Diabetology

Medically reviewed: 11 June 2026

Prediabetes is the body clearing its throat before it speaks. It's a warning you can still act on.

Prediabetes means your blood sugar is higher than normal, but not yet in the diabetes range. It is best understood as a warning window — a stage where the body is signalling trouble ahead, but where there is still real room to change course. In India this window is enormous: around 136 million adults are estimated to have prediabetes (Anjana et al., ICMR-INDIAB, 2023). Most do not know it.

What the numbers mean

Prediabetes is defined by where your blood sugar sits:

| HbA1c | Meaning | |---|---| | Below 5.7% | Normal | | 5.7% – 6.4% | Prediabetes | | 6.5% and above | Diabetes range |

(HbA1c shows your average blood sugar over about three months — see HbA1c explained.)

If your result lands in that middle band, you are in the warning window — not in diabetes, but no longer in the clear.

Why it matters

Two reasons make prediabetes worth taking seriously:

  1. It can progress. Left unattended, prediabetes commonly moves toward diabetes over time.
  2. It already carries some risk. Even before diabetes, higher sugar adds to heart and blood-vessel risk.

But — and this is the hopeful half — prediabetes is the stage where action works best. The body is still flexible here in a way it is less so later.

What can be done

At this stage, doctor-guided changes can meaningfully improve blood sugar for many people:

  • Reaching a healthier weight, especially losing belly fat
  • An eating pattern that steadies blood sugar — more protein, fibre, and whole grains; fewer sugary and refined foods
  • Regular movement, even daily walking
  • Better sleep and less chronic stress
  • Regular monitoring with your doctor to track progress

This is really about improving your overall metabolic health, of which blood sugar is one part.

The mindset that helps

It is easy to either panic or ignore a prediabetes result. Neither helps. The useful response is to treat it as early, honest feedback — a chance to adjust while adjustment is easy, with a doctor guiding what fits your life. A result in this range is not a verdict; it is a window. Windows close, so the time to use it is now.

Prediabetes is a door still open. Walking through it early is far easier than forcing it later.

Talk to a doctor

Got a borderline sugar or HbA1c result? An NMC-registered doctor on Kyros can explain it and guide your next steps. Take the assessment.


References

  1. Anjana RM, et al. ICMR-INDIAB national study. Lancet Diabetes & Endocrinology, 2023.

Medically reviewed by [doctor name, NMC reg. no.] on [date]. For general information only; not a substitute for your own doctor.

Frequently asked questions

What is prediabetes?
Prediabetes means your blood sugar is higher than normal but not yet high enough to be diabetes. It is a warning stage, shown by an HbA1c of 5.7 to 6.4 percent, and a signal to act early.
Is prediabetes serious?
It is a serious warning but also an opportunity. Without action, prediabetes can progress to diabetes. With timely, doctor-guided changes, many people can keep their blood sugar in a healthier range.
Can prediabetes be improved?
Often yes. Weight, diet, activity, and sleep changes — guided by a doctor — can meaningfully improve blood sugar at the prediabetes stage, which is why catching it early matters so much.

References

  1. Anjana RM, et al. ICMR-INDIAB national study. Lancet Diabetes Endocrinol, 2023.

Reviewed by a Kyros Endocrinology / Diabetology specialist · 11 June 2026

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