HbA1c
HbA1c reflects your average blood sugar over the past 2–3 months, not a single moment — it's the standard screening test for prediabetes and diabetes precisely because it can't be skewed by what you ate that morning.
Your reading
4.0–5.6% is the normal range. 5.7–6.4% is generally classified as prediabetes, and 6.5% or above as diabetes — these are the standard clinical cutoffs, not app-specific interpretations.
What may help
- —Reducing refined carbs and added sugar, and pairing carbs with protein/fiber to blunt blood sugar spikes
- —Regular physical activity — muscles use blood sugar more efficiently after exercise, sometimes for up to 24–48 hours
- —Weight management if applicable — even modest weight loss measurably improves insulin sensitivity for many people
When to talk to a doctor
If your HbA1c is 5.7% or above — this is exactly the range where early lifestyle intervention has the most leverage, before it progresses further.
Source: MedlinePlus (NIH). Reference ranges are standard adult intervals — your own lab may report a different range for your age, sex, or method. This isn't medical advice; always go by the range on your actual results and talk to a clinician about anything that concerns you.