‘What I’m doing right now isn’t healthy, I know that.’ Randy Santel, a former college footballer turned ‘professional eater’, taking part in the 64oz steak challenge at Judge Roy Beans Bar & Restaurant in Newbridge, Co Kildare. Photograph: Aidan Crawley

Like Clark Kent, Randy Santel has a superhero alter-ego. But rather than ducking through revolving doors, the 27-year-old’s secret powers are activate(...)