Of course you need iron to live but many times too much of something leads to bad consequences. The previous studies I have looked at point to heme vs non-heme

Of course you need iron to live but many times too much of something leads to bad consequences. The previous studies I have looked at point to heme vs non-heme iron sources. The heme iron comes from animal sources and is easier for the human body to absorb than plant based non-heme iron but the heme iron may be leading to cancer growth.