hs-CRP — high-sensitivity C-reactive protein — measures low-grade systemic inflammation. Unlike standard CRP tests designed to detect acute infections, hs-CRP detects the subtle, chronic inflammation that research associates with cardiovascular disease, metabolic syndrome, insulin resistance, and other long-term health conditions.
Chronic low-grade inflammation is increasingly recognized as a central driver of cardiometabolic disease. Elevated hs-CRP is associated with increased cardiovascular risk independent of cholesterol levels. It provides insight into inflammatory processes that standard lipid panels cannot detect.
Optimal hs-CRP is below 1.0 mg/L. Levels between 1.0–3.0 mg/L suggest moderate inflammatory risk. Levels above 3.0 mg/L indicate high inflammatory burden and warrant investigation. Standard labs often consider up to 3.0 mg/L as normal — this threshold may miss individuals with clinically meaningful inflammation.
hs-CRP is most informative when interpreted alongside other metabolic markers — fasting insulin (insulin resistance), ApoB (cardiovascular particle count), and Lp(a) (genetic cardiovascular risk). Together, these biomarkers provide a comprehensive picture of cardiometabolic health.
What is hs-CRP?
High-sensitivity C-reactive protein (hs-CRP) is a blood marker that measures low-grade systemic inflammation — the chronic, subclinical inflammation associated with cardiovascular disease and metabolic dysfunction.
What is a good hs-CRP level?
Optimal hs-CRP is below 1.0 mg/L. Between 1.0–3.0 mg/L suggests moderate inflammatory risk. Above 3.0 mg/L indicates high inflammatory burden.
How is hs-CRP different from regular CRP?
Standard CRP tests detect acute inflammation from infections or injuries. hs-CRP uses a more sensitive assay to detect the subtle, chronic inflammation that drives long-term cardiometabolic disease — a much more valuable marker for health optimization.