Unless there is some reason that iron has been reccomended to you, there isn't really a point for a man to take iron. The iron in a One-A-Day or Centrum vitamin supplement is sufficient for our needs. Women have regular blood loss so their iron needs are dramatically higher than ours. I think that taking a basic vitamin supplement is a good idea given modern eating habits and stress level, but iron isn't really a concern.
There are some negative consequences for taking excess iron, but again, there really isn't a need for a man in good health to take it. And they tend to be long term unless you are snacking on them like candy.
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