Is there a trusted "Has-it-all-vitamin" for Men?

@mturling I quit taking all vitamins a few years back and instead started donating blood twice a year instead of.. feel better than when i was in my 30s
 
@sabu935 Had a nutrition professor claim he gave blood regularly, as men don't menstruate. (No way to easily lower blood iron.)

He was a little bonkers, but he had a point.
 
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