How High Should Your Iron Levels Be?


Question:
I find out my iron levels whenever I donate blood; 38 is the minimum to donate. I am always on the low side, if not too low. Only, what is the healthy level of iron? I mean, I'm low for donating blood, but I don't think I'm anemic or anything, and I'm wondering if I should even consider myself "low in iron" (I'm usually somewhere in the thirties).

Answers:
Most well-nourished people in industrialized countries have 3-4 grams of iron in their bodies. Of this, about 2.5 g is contained in the hemoglobin needed to carry oxygen through the blood. Another 400 mg is devoted to cellular proteins that use iron for important cellular processes like storing oxygen (myoglobin), or performing energy-producing redox reactions (cytochromes). 3-4 mg circulates through the plasma, bound to transferrin.
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