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Also reported in: mcg/L, pmol/L
Your ferritin is within the standard laboratory reference range, indicating you have sufficient iron stored to meet your body's needs without active iron deficiency.
Ferritin is the protein that stores iron in your tissues. At this very low level, your iron reserves are virtually depleted. Your body has been drawing down these stores for months, and now there is almost nothing left. Your bone marrow is struggling to make new red blood cells.
See your doctor urgently. IV iron infusion may be needed for rapid replenishment. The cause of iron depletion (blood loss, malabsorption, dietary insufficiency) must be found and addressed.
Ferritin: {{value}} {{unit}} — very low (ref: {{low}}–{{high}})Low ferritin is the most reliable indicator of depleted iron stores. Even before anemia develops, low ferritin may contribute to significant symptoms: persistent fatigue, hair shedding (telogen effluvium), brain fog, restless legs, reduced exercise tolerance, and cold intolerance. This is very common, especially in women.
See your doctor. Start iron-rich foods (red meat, legumes, dark leafy greens) and take iron supplements with vitamin C to improve absorption. Identify the cause — heavy periods, dietary restriction, or gut malabsorption are the most common culprits.
Ferritin: {{value}} {{unit}} — below reference range (ref: {{low}}–{{high}})While technically 'normal' by lab standards, ferritin in the 12–49 range is below the optimal level of 50+. Many practitioners consider this 'iron insufficient' — you likely have some fatigue, suboptimal energy, and possible hair thinning, even if you're not clinically anemic.
Aim to build ferritin toward 50–100 ng/mL. Iron-rich foods, supplementation (ferrous bisglycinate is well-tolerated), and vitamin C with iron meals all help. Retest in 3 months.
Ferritin: {{value}} {{unit}} — borderline low (12–49 ng/mL)Your ferritin is within the standard laboratory reference range, indicating you have sufficient iron stored to meet your body's needs without active iron deficiency.
No action needed. Maintain a balanced diet with iron-containing foods.
Ferritin: {{value}} {{unit}} — within reference rangeFerritin in the 50–200 ng/mL range is considered optimal by most functional and integrative practitioners. At this level, your body has adequate reserves for robust energy production, healthy hair cycling, immune function, and cognitive performance.
Excellent result. Maintain with a balanced diet. No supplementation needed unless advised by your doctor.
Ferritin: {{value}} {{unit}} — optimal (50–200 ng/mL)Borderline high ferritin can be caused by iron overload (hemochromatosis), but more commonly reflects inflammation — ferritin is an acute phase reactant that rises with chronic inflammatory conditions, metabolic syndrome, fatty liver disease, and alcohol use.
Check CRP and other inflammatory markers alongside transferrin saturation. If transferrin saturation is also high, hemochromatosis screening is warranted. If inflammation markers are elevated, treat the underlying cause.
Ferritin: {{value}} {{unit}} — borderline high (201–400 ng/mL)Significantly elevated ferritin can indicate hereditary hemochromatosis (iron overloading disorder), chronic liver disease, inflammatory conditions, regular alcohol use, or metabolic syndrome. At these levels, iron may be accumulating in organs.
See your doctor. Check transferrin saturation, liver enzymes, and CRP. If transferrin saturation is above 45%, genetic testing for HFE mutations is recommended. Reducing alcohol and treating any inflammatory condition is important regardless of cause.
Ferritin: {{value}} {{unit}} — above reference range (400–999 ng/mL)Ferritin above 1000 ng/mL indicates either noticeable iron overload (causing liver cirrhosis, heart failure, diabetes, joint destruction, and bronze skin in hereditary hemochromatosis) or a noticeable inflammatory/malignant condition. Hyperferritinemia at this level is associated with serious outcomes.
Seek urgent medical evaluation. Liver biopsy, MRI iron quantification, and comprehensive iron overload workup are needed. In hemochromatosis, aggressive blood removal (a treatment that draws out blood) to deplete iron stores can prevent further organ damage.
Ferritin: {{value}} {{unit}} — very high (>1000 ng/mL)Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.