Lay opinion vs evidence: CRP Labor

CRP (C-reactive protein) is a well-established inflammatory marker used clinically for assessing infection, chronic inflammation, and cardiovascular risk (hs-CRP). Lay opinions often overinterpret CRP as a universal health gauge – e.g., directly equating it with 'inflammation in the body' or using it alone to justify dietary changes. The evidence shows: CRP levels are non-specific, fluctuate due to acute infections, stress, smoking, or poor sleep, and have only moderate predictive power for individual diseases. An elevated CRP alone does not warrant specific therapy; it must be interpreted in clinical context. The strongest evidence (human-strong) supports hs-CRP for cardiovascular risk stratification in intermediate-risk individuals. Consumer lab tests (e.g., MyBody-X) can measure CRP, but without medical guidance, misinterpretation and unnecessary anxiety are common. Bottom line: CRP is a useful but limited biomarker; lay users should discuss results with a physician.