The Himalayan Goji berry has more iron than steak, more vitamin C than oranges and more beta carotene than carrots.
35
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
Iron weighs more after it rusts.
16
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9