Prediabetes: More Than 2 in 5 US Adults Have It, 8 in 10 Don't Know
About 115 million US adults have prediabetes and 8 in 10 don't know, because an HbA1c of 5.7-6.4% has no symptoms. The US Diabetes Prevention Program cut progression to type 2 diabetes by 58% with a 7% weight loss and 150 minutes of walking a week. Our Comprehensive Blood Work Panel is $249.
About 115 million American adults have prediabetes — more than 2 in 5 — and 8 in 10 of them do not know it, because there are usually no signs. Read that again: a condition affecting more than two fifths of the adult population, with no symptoms, that the CDC calls a serious condition raising the risk of type 2 diabetes, heart disease and stroke.
The tragedy is that prediabetes is the single best intervention window in metabolic medicine. It is the stage where the trajectory is still cheap and easy to change. Miss it, and the next stop is a lifelong disease. Catch it, and the landmark US trial shows the odds can be cut by more than half with unglamorous lifestyle change.
What Is Prediabetes, Exactly?
Your body runs on tightly regulated blood glucose, managed by insulin. Prediabetes is the middle zone where that regulation is slipping — glucose runs higher than normal, but not yet high enough to qualify as diabetes. Underneath, the story is usually insulin resistance: your muscle, liver, and fat cells respond sluggishly to insulin, so the pancreas compensates by producing more. For years this compensation works and your glucose looks only mildly off. Eventually the pancreas can't keep up — and that is when diabetes arrives.
The middle zone is defined by three interchangeable tests. These are the CDC's cut points:
| Test | Normal | Prediabetes | Diabetes |
|---|---|---|---|
| A1C (HbA1c) | Below 5.7% | 5.7–6.4% | 6.5% or above |
| Fasting blood sugar | 99 mg/dL or below | 100–125 mg/dL | 126 mg/dL or above |
| Glucose tolerance test (2-hr) | 140 mg/dL or below | 140–199 mg/dL | 200 mg/dL or above |
HbA1c is the workhorse: it measures your average blood sugar over the past two or three months rather than one morning's reading. It appears on essentially every comprehensive screening panel — which means many people technically have been tested and simply never had the 5.7–6.4 band flagged and explained to them. If you have old lab results in a drawer, this is worth checking.
Is Prediabetes Actually Harmful?
The name suggests a waiting room. The CDC's own framing disagrees: prediabetes is "a serious health condition that increases your risk of developing type 2 diabetes, heart disease, and stroke." The risk is not deferred until a diagnosis arrives; it is already being carried.
Prediabetes also rarely travels alone. It clusters with high blood pressure, abnormal lipids, visceral fat, and fatty liver — the metabolic syndrome package. Finding one member of the cluster is the cue to check for the rest, which is exactly what a structured screening panel does in one blood draw.
Can Prediabetes Be Turned Around?
The reason clinicians get animated about prediabetes is the US Diabetes Prevention Program — among the most robust results in lifestyle medicine. Participants aimed to lose 7% of their body weight and exercise 150 minutes a week. That group lowered their chances of developing type 2 diabetes by 58% compared with placebo — nearly twice the effect of the medication arm (metformin, 31%). Among participants aged 60 and older, the reduction was 71%.
The benefit did not evaporate when the trial ended. Follow-up in the DPP Outcomes Study found the lifestyle group still delaying diabetes by 34% at 10 years and by 27% at 15 years.
Notice what the intervention was not: no heroic diet, no marathon training. A 7% weight loss plus brisk walking most days. The levers, in rough order of evidence:
- Modest, sustained weight loss — the dominant factor in every trial.
- Move after meals. Muscle is your largest glucose sink; a short walk after eating puts it to work when glucose is highest.
- Strength training — more muscle mass means more glucose disposal capacity at rest.
- Cut liquid sugar first — sodas, sweetened teas and coffees are the fastest wins.
- Sleep and stress — a metabolic variable, not a lifestyle luxury.
Who Should Get Tested, and How Often?
The US Preventive Services Task Force gives screening for prediabetes and type 2 diabetes a Grade B recommendation in adults aged 35 to 70 who have overweight or obesity, and says that for adults with normal blood glucose, screening every three years is a reasonable approach.
Two details matter for readers of this site. The Task Force asks clinicians to consider screening at an earlier age in groups with disproportionately high incidence — Asian American people among them — and notes that a BMI of 23 or greater may be an appropriate cut point in Asian American persons rather than the usual 25. Metabolic risk arrives at a lower body weight. Family history of diabetes, high blood pressure, and a history of gestational diabetes are the other standard reasons to test earlier.
Where Does Glucose Testing Sit in Our Screening, and What Does It Cost?
Blood glucose is not a standalone product at New Dawn Health — it lives inside the blood work, which is either bundled into a screening package or booked as a panel alongside imaging. Our prices:
| Item | What it covers | Our price |
|---|---|---|
| Comprehensive Blood Work Panel | 45 markers across metabolic, hormonal, cardiovascular and inflammatory categories; bookable on its own or added to any Full-Body Scans package | $249 |
| Convenient | Our entry screening package: biometrics, physical examination, blood analysis, urine analysis, ECG and ultrasounds in one visit | $299 |
The metabolic block of the blood work is where glucose control shows up, next to the lipid, liver and kidney results that complete the picture. Every tier and what it includes is listed on the packages page. Our men's health screening in Taiwan and women's screening guides show where the blood work sits in a full check-up.
The takeaway: prediabetes is common, silent, and more responsive to action than almost anything else screening can find. The 5.7–6.4 band on a result you may already have is the most actionable number most people never look at.
This article is for general education and is not medical advice. Diagnosis and management of glucose disorders belong with a physician who can interpret your results in context.
Sources
- CDC — Preventing Type 2 Diabetes (accessed 2026-09-08)
- CDC — Prediabetes: Your Chance to Prevent Type 2 Diabetes (accessed 2026-09-08)
- CDC — Diabetes Testing (accessed 2026-09-08)
- CDC — National Diabetes Statistics Report (accessed 2026-09-08)
- NIDDK (NIH) — Diabetes Prevention Program (DPP) (accessed 2026-09-08)
- US Preventive Services Task Force — Prediabetes and Type 2 Diabetes: Screening (accessed 2026-09-08)