If i took too much zinc over a month and experienced hair loss, should i supplement iron ?

If iron is low...: It is possible that excess zinc can cause low iron which can cause hair loss. In the best of worlds you should have your iron levels checked; if it is low then iron is likely to help. The reason for caution is that iron is a pro-oxidant which can increase risk of heart disease and cancer so you don't want to take it unless you need it! see http://bit.Ly/1a76u8f you can also eat iron-rich foods.