The Rock is known for the WWE, The Fast And The Furious franchise and his rock hard body. Pun intended. His muscles have muscles that have muscles. Maintaining a body like that must take a whole lot of work.
While it is clear that after 33 days his body changed, was it worth it in the end? On Reddit, Mark broke it all down for those who were also interested in the challenge.
“After eating 5300 calories a day for 33 days, more than 23 hours of cardio, and almost 80lbs of cod!, I gained a total of 1lb. After over 28 hours of weight training, I got leaner and gained some muscle in my upper arms (most triceps), upper legs (mostly quads), my upper chest (you can see it pulled my chest up).”