NUTRITIONHealth Calculator
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Iron Deficiency

Low ferritin, low TSAT, low Hgb, low MCV

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Evidence-based calculations Used in clinical settings worldwide Regular monitoring recommended

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Why: This calculation helps assess important health parameters for clinical and personal wellness tracking.

How: Enter your values above and the calculator will apply validated formulas to compute your results.

Evidence-based calculationsUsed in clinical settings worldwide
Sources:Medical LiteratureWHO Guidelines

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Understanding Iron DeficiencyUse the calculator below to check your health metrics

Classic Iron Deficiency Anemia

Low ferritin, low TSAT, low Hgb, low MCV

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Functional Iron Deficiency (CKD)

Normal ferritin but low TSAT in dialysis patient

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Iron Deficiency with Inflammation

Elevated ferritin masks iron deficiency

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Pregnancy Iron Deficiency

Third trimester with depleted iron stores

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Iron Deficiency in Heart Failure

Using ESC criteria for heart failure

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Early Iron Depletion (No Anemia)

Iron stores depleted but hemoglobin normal

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GI Blood Loss Iron Deficiency

Chronic occult GI bleeding

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Normal Iron Status

Healthy iron stores

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Iron Studies

Primary marker of iron stores
Circulating iron
Total iron binding capacity
Transferrin saturation (or will calculate)

CBC Values

For anemia assessment
Mean corpuscular volume
Red cell distribution width
Inflammation marker

Patient Information & Clinical Context

Affects thresholds
Patient age
Pregnancy status
Kidney disease stage
Chronic inflammation
Heart failure type
Blood loss history
GI conditions

For educational and informational purposes only. Verify with a qualified professional.

๐Ÿฅ Health Facts

โ€” WHO

โ€” CDC

What is Iron Deficiency?

Iron deficiency is the most common nutritional deficiency worldwide, affecting ~2 billion people. It progresses through stages: storage depletion, iron-deficient erythropoiesis, and iron deficiency anemia.

Absolute Iron Deficiency

  • Low ferritin (<30 ng/mL)
  • Depleted iron stores
  • Low TSAT (<20%)
  • Causes: blood loss, poor intake, malabsorption

Functional Iron Deficiency

  • Normal/high ferritin
  • Low TSAT (<20%)
  • Iron trapped in storage
  • Causes: inflammation, CKD, chronic disease

Diagnostic Criteria

Standard Criteria:

Iron Deficiency: Ferritin <30 ng/mL
Iron Deficiency Anemia: Ferritin <30 + Hgb below threshold

Special Populations:

CKD (Dialysis): Ferritin <200 ng/mL or TSAT <20%
Heart Failure: Ferritin <100 or (100-299 with TSAT <20%)
Inflammation: Ferritin <100 ng/mL (acute phase reactant)
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