I'm Not going to give into this to say your right~ on an aspect of a healthy male you are right, there is no need to supplement with Iron~But the thread topic is on Desiccated liver tabs ~ Desiccated liver tabs serve more than just Iron , Just like BCAA that You brought in to the topic ~ that are point specific to Three amino acids Leucine, Isolecine and Valine
With that said if Iron was the thread topic, I'd jump right on the band wagon with you and advise ~ No need to supplement, unless your deficient in serum Iron or it's related mineral deficiencies.
But again we're not talking about Iron as a topic ~ the OP asked what others think ~ I spoke my views as be cautious, but at the same time you can reap some benefits.
Beverly international has been probably one of the longest running supplement lines sought after by many ~ and they still stand to believe Desiccated liver tabs are of benefit.
I did answer your question~ Iron independent of it's self No ~ Desiccated liver tabs, you bet, just don't over do it ~ just like my first post clearly stated