chemically haemoglobin is a iron complex. haem is the iron part in haemoglobin. without the iron the complex entity is not formed. and without iron rbc can't carry oxygen because there will be no lone pair electrons to give out. in other words oxyhaemoglobin doesn't forms. hence iron is an important part in haemoglobin as well as in rbc.
Iron. Vitamin B6 & Copper are also necessary.
Iron
Iron.
Iron is necessary for the blood to function. It can form without iron but to carry oxygen, the hemoglobin molecules in red blood cells require iron.
The electrolyte iron is important in the production of hemoglobin.
copper's role in iron metabolism makes it a key factor in hemoglobin synthesis
iron
Everyone needs iron. But for the formation of hemoglobin and for brain development and function.
Iron plays a critical role in the formation of hemoglobin.
Iron (Fe)
Well red meat has iron in it which is necessary for the hemoglobin (it is full of iron) but it will not increase the amount, just improve functionality if you are lacking.
The hemoglobin that makes up each RBC. Iron is crucial to the formation of hemoglobin, and I believe is what the oxygen sticks to.