Toxicity, Iron

"[…] excess iron may catalyze reactions that produce reactive oxygen species and consequently cause oxidative damage to cells and tissues that can lead to tissue fibrosis and organ dysfunction long term."(Anderson & Frazer, 2017)

Because iron molecules can both donate and accept electrons they can act as potentially toxic molecules, catalysing the formation of free radicals, which are subsequently damaging cellular structures (Imam et al., 2017). The body tries to reduce free iron by binding it to proteins such as ferritin and hemosiderin (Abbaspour et al., 2014).