HbA1c — Three-Month Glucose Average — 60-Second Protocol
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lab guide · 2026-09-03
HbA1c is your average blood glucose over the previous eight to twelve weeks.
Glycated haemoglobin (HbA1c) reflects average blood glucose over the past two to three months. Per the CDC, below 5.7% is normal, 5.7–6.4% is prediabetes and 6.5% or above is diabetes.
The protocol
| Units | % |
| Standard range | < 5.7 normal; 5.7–6.4 prediabetes; ≥ 6.5 diabetes — CDC categories (ranges vary by lab) |
| <5.7 | normal (CDC category) |
| 5.7-6.4 | prediabetes (CDC category) — the higher the A1C within this range, the greater the risk of type 2 diabetes |
| ≥6.5 | diabetes range (CDC category) — in someone not already diagnosed, a clinician confirms the diagnosis |
| Clinician | a result of 6.5% or higher in someone without diabetes goes to a clinician, who confirms the diagnosis |
| Prediabetes | a result of 5.7–6.4% is a reason to ask your clinician about next steps and a repeat test |
HbA1c sits inside the at-home panel I use, next to the rest of the metabolic set.
At-Home Comprehensive Blood Panel
A finger-prick home panel covering key metabolic and inflammation markers (such as HbA1c, hsCRP, GGT and glucose) so you can baseline and re-check the numbers that move with diet and…
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Full transcript
HbA1c is your average blood glucose over the previous eight to twelve weeks — the single best one-shot picture of metabolic health for most adults. Under five point four percent is excellent metabolic flexibility. Five point seven to six point four is the pre-diabetic range, and that is the one to act on. Six point five or above is a diabetes diagnosis, which is a clinician conversation, not a protocol. Recheck every three to six months. agegen.ai. Generate your prime age! ~~ Mr. Age
Sources
- https://medlineplus.gov/a1c.html
- https://medlineplus.gov/lab-tests/hemoglobin-a1c-hba1c-test/
- https://www.cdc.gov/diabetes/diabetes-testing/prediabetes-a1c-test.html
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