What does Iron do?

Iron is a core nutrient in the body. Yes we all know this, but why?

It is part of hemoglobin, which carries oxygen in the blood. It maintains cell function and is vital in infant brain and nerve development.¹

Iron found in food is in two forms, heme and non-heme iron. Heme iron,  makes up approx. 40 percent of the iron in meat, fish, and, poultry, which is well absorbed. Non-heme iron, makes up 60 percent of the iron in animal tissue and all the iron in plants (grains, fruits,vegetables,nuts). It is less well absorbed.