Your body depends on a wide range of potentially toxic minerals to survive. One is iron. If taken in its pure form, iron would kill you, but the Creator God put in place an elegant system to supply your daily iron without adding rusty nails to your breakfast. By God's design, we get iron from our food. Some foods have more than others, but all have iron. There are two different forms of iron, heme-iron and non-heme iron. Heme-iron, found in meat, fish, and poultry, is approximately three times more absorbable than the non-heme iron, which is found in vegetables, fruits, dried beans, nuts, grain products, and dietary supplements.
In fact, if you blended tonight's dinner and ran a magnet through it, you'd discover bits of iron clinging to the tip of the magnet! So why is iron so important, and how do we get it safely into our bloodstream?
Some 96% of our body is made of four common chemicals: hydrogen and oxygen (75%, mostly water), carbon (18%), and nitrogen (3%). The remaining 4% consists of many different minerals, such as sulfur, magnesium, and iron. Although some of these minerals come in small "trace" portions (only 3 grams of iron in an adult male), each is essential for life.
[Read the rest of the article at Answers in Genesis.]