Daily requirement of Iron – Male 10mg
– Female 15 mg
Increases in growing children, pregnant and lactating women
Sources
- Dietary – mostly in the organic form from meat, cereals, etc.
Body composition of Iron
Total content of Iron in the body is about 4000mg in an adult male, of which about 2/3 – 2500 mg is present in circulating red blood cells see table.
Table: Iron distribution in normal adults
| Iron content (mg) | ||
| Men | Women | |
| Hemoglobin | 3050 | 1700 |
| Myoglobin | 430 | 30 |
| Enzymes | 10 | 8 |
| Transport (transferin | 8 | 6 |
| Storage ( ferritin and | 750 | 300 |
| other form) | ||
| Total | 4246 | 2314 |
N.B. The above estimations are based on the assumptions that:
The average male adult weighs 80 kg and has a mean Hb level of 16 g/dL and the female adult weighs 55 kg and has a mean Hb level of 14 g/dL.
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