Metabolic — Glycemic Control
HbA1c (Glycated Hemoglobin)
HbA1c estimates average blood glucose over the prior ~90 days.
Reference range
Optimization target: <5.4% (population-level). Functional optimization context only — not a diagnostic assertion. Range varies by lab, age, and sex.
Why it matters
HbA1c is the standard 3-month integrator of glycemic control. In a longevity context, the goal is well below the diabetic threshold — persistent mid-5s already correlates with progression risk. HbA1c is read alongside fasting insulin and fasting glucose to distinguish metabolic dysfunction from a single high-carb day.
How REVRCEL clinicians read it
Triangulate with fasting insulin and fasting glucose. Treat the upstream signal, not the single value.
Included in
- Core Bloodwork
- Metabolic Panel
Common questions
What HbA1c is optimal?
Well below the diabetic threshold. Sub-5.5% is a common longevity target; individualized.
Can GLP-1 medications lower HbA1c?
Yes — GLP-1 receptor agonists are well-established to reduce HbA1c in members with elevated baseline.
Related biomarkers
Statements have not been evaluated by the FDA. This page is educational and is not medical advice.