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iron
Iron
Iron (Fe, Z=26, [Ar] 3d⁶ 4s²). ~3.5–4.5g total; 70% in haemoglobin Fe²⁺-haem (O₂ transport), 20% stored as ferritin/haemosiderin, 5% myoglobin/enzymes. Regulated by hepcidin. Most common nutritional deficiency worldwide.
Entry Metadata
| Field | Value |
|---|---|
| ID | iron |
| Name | Iron |
| Status | draft |
| Last reviewed | 2026-06-05 |
| Atlas | 01-human |
| Scale | 02-atomic |