"The pictures of those men were shocking. They looked like they stereotypical "starved third world children". Going a year must have had an enormous psychological effect on them. I was curious to know how they were doing 20 - 50 years later, and particularly how long they lived, and if any of them changed their eating habits for life, how so, and how much."
Don't forget though; They were facing either a military draft, or being in the starvation experiment. They really didn't have any choice. Enormous as the psychological effect may have been, it would appear the thought of being part of a draft was a worse option in their minds. Even worse than starvation. It would be very interesting (as you said above) to read a follow up though of these men decades later.