Fibrinogen
What it is
Fibrinogen is a protein produced by the liver that's essential for blood clotting, and it also behaves as an inflammatory marker, rising in response to inflammation elsewhere in the body.
Why it matters
Fibrinogen sits at the intersection of clotting and inflammation, which is part of why it's been studied as an independent cardiovascular risk factor beyond LDL and the standard lipid panel: elevated levels have been associated with increased clot formation risk. Because it also rises during acute inflammation or infection, an elevated result is most meaningfully interpreted alongside hs-CRP and the rest of the cardiometabolic markers rather than in isolation.
Fibrinogen is one of the markers in Zaro's Source panel and every tier above it.
This information is for educational purposes and is not a substitute for professional medical advice. Always talk to a physician about your specific results and health history.
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