Iron Stores
Ferritin
Ferritin reflects total body iron stores and is also an acute-phase reactant.
Reference range
Optimization target: 50–150 ng/mL (sex-dependent). Functional optimization context only — not a diagnostic assertion. Range varies by lab, age, and sex.
Why it matters
Low ferritin is a frequent driver of fatigue, hair loss, and exercise intolerance — and is often missed on standard panels. High ferritin can reflect either iron overload or systemic inflammation, which is why it is read against hs-CRP. REVRCEL panels include ferritin to catch deficiency and excess at a stage where lifestyle and diet are still sufficient.
How REVRCEL clinicians read it
Read against hs-CRP. High ferritin in the presence of high hs-CRP is more likely an inflammation signal than iron overload.
Included in
- Core Bloodwork
Common questions
Why is ferritin tested?
It is the best single marker of iron stores and frequently flags fatigue causes that standard CBC misses.
Related biomarkers
Statements have not been evaluated by the FDA. This page is educational and is not medical advice.