Will a iron tablet overdose kill you

and if so how many pills would it take?

Yes if you consume more than 50 times the recommended dosage, it can kill you. It is one of the leading causes of death in young children who think iron supplements are candy and eat the entire bottle.

Taking too much but less than a lethal dose can also cause a very slow death. Iron overdose causes severe liver damage and diabetes. Bottom line, you should only take iron tablets if prescribed by a doctor after the necessary tests for anemia have been done.