Capacity 02 · Restore & Recover
Signal · hs-CRP
The low-grade signal that never fully goes out.
C-reactive protein is the body's general inflammation response. Spikes are normal — they are how you heal from a strain, a cold, a hard week. What matters for recovery is the quiet, persistent baseline between spikes.
The ranges that matter
Three bands. One direction.
What matters most is the direction over time under the same conditions — is the number trending toward the Fit band, or drifting away from it?
Fit / Optimal
< 1.0 mg/L
Quiet systemic background. Inflammation resolves cleanly between exposures. Strong recovery capacity.
Well
1.0 – 3.0 mg/L
Mild chronic elevation. Often reflects sleep debt, visceral fat, poor diet, or dental inflammation. Correctable.
Sick / At Risk
> 3.0 mg/L (severe > 10)
Meaningful chronic inflammation. Associated with elevated cardiovascular and metabolic risk independent of other markers.
What it reveals
Inflammation is a tool, not a verdict.
The body is supposed to inflame. Acute inflammation is how tissue gets rebuilt after training, how infection is contained, how injury heals. A transient spike in CRP after a hard session or a cold is a system working correctly.
The problem is not the spike — it is the failure to return to baseline. Chronically elevated CRP means the fire never fully goes out. And chronic low-grade inflammation is what silently ages vessels, joints, brain, and mitochondria.
Because CRP rises with any recent illness or hard training, a single high reading means little. One test during a week of flu is meaningless. Two readings 6 weeks apart, outside of illness and hard sessions, is the signal.
This belongs in Restore & Recover because CRP is the clearest chemistry signal of whether your system is winding down. When it does, recovery capacity is preserved. When it doesn't, every other capacity erodes quietly.
On the floor
Don't chase a single CRP number. Chase the trend across two quiet windows. And don't be surprised when the levers that lower it are the same ones that improve sleep, visceral fat, and fuel regulation — the system is one system.
What moves it
Work the system, not the number.
First levers
- Lose visceral fat — it is the largest single source of chronic inflammatory signaling.
- Sleep 7+ hours consistently. Sleep debt elevates CRP within days.
- Cut ultra-processed food, especially industrial seed oils and added sugar.
- Treat dental and gum inflammation — a common hidden source.
Second levers
- Zone 2 aerobic training lowers chronic CRP; excessive high-intensity work can raise it.
- Fiber-rich, plant-forward eating pattern lowers background inflammation.
- Omega-3 intake (fatty fish or supplement) supports resolution of inflammation.
- Re-test in 90 days under calm conditions. Look at baseline, not peaks.
Go deeper
Coaching and education only. Not medical diagnosis or treatment. Excerpts welcome with attribution to metabolicradar.com.