Understanding High-Sensitivity C-Reactive Protein: Normal vs Optimal Ranges
Also known as: hs-crp, hscrp, high sensitivity crp
?What is High-Sensitivity C-Reactive Protein?
High-sensitivity C-reactive protein (hsCRP) is an inflammatory marker produced by the liver in response to tissue damage, infection, or chronic inflammation. It is a more sensitive measure than standard CRP and is particularly useful for assessing cardiovascular and metabolic disease risk at lower concentration ranges.
!Why It Matters
Elevated hsCRP may suggest chronic low-grade inflammation, which can be associated with increased cardiovascular disease risk, metabolic dysfunction, and other inflammatory conditions. Monitoring hsCRP can help identify inflammation-driven health risks before symptoms become apparent and guide lifestyle or treatment interventions.
Reference Ranges
| Range Type | Min | Max | Unit | Note |
|---|---|---|---|---|
| Lab Normal | 0 | 3 | mg/L | Standard lab reference range |
| Optimal | 0 | 1 | mg/L | Evidence-based optimal range for health |
| Longevity Target | 0 | 1 | mg/L | Per longevity medicine research (Attia et al.) |
Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.
Symptoms of Imbalance
- Persistent fatigue
- Joint or muscle pain
- Unexplained weight gain
- Frequent infections
- Brain fog or difficulty concentrating
How to Improve Your Levels
- 1Adopt an anti-inflammatory diet rich in omega-3 fatty acids, leafy greens, and whole grains
- 2Engage in regular moderate-intensity exercise (150+ minutes per week)
- 3Manage stress through meditation, yoga, or other relaxation techniques
- 4Improve sleep quality and aim for 7–9 hours of consistent sleep
- 5Reduce refined sugar and processed food intake
- 6Consider weight loss if overweight, as excess adipose tissue promotes inflammation
When to Test
Consider testing if you have cardiovascular risk factors (hypertension, family history, smoking), metabolic syndrome, persistent fatigue, or inflammatory symptoms. It is also useful for baseline assessment in preventive health screening and to monitor response to lifestyle changes or anti-inflammatory interventions.
Related Biomarkers
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