What’s the difference between Iron That we consume and Iron that we use to make swords/Armors/Bullets

Question

What’s the difference between Iron That we consume and Iron that we use to make swords/Armors/Bullets

In: 16

Answer 1

For the most part we eat iron that is bonded to other atoms to produce compounds. Most of these are already in organic compounds that are being used by organisms that we are consuming.

The iron that is used for construction is molecular iron, which is not chemically bonded to anything although it might be physically mixed with another substance to form an alloy.