I have heard that excess iron in a persons diet can be bad for you is this true? I am a 20 year old male, and i take Centrum Performance and it has 100% daily value of Iron in it.. is this ok? I only eat red meat once or twice a week max., but i do occasionally eat cereals and stuff with fortified with vitamins.. for example, i had a bowl of Total Raisin Bran, which also has 100% DV of iron.. is this bad? should i take a diff. multivitamin?