I wonder how cheese affects his digestive system?
Typically cheese is likely to cause constipation, and if most normal people consumed cheese like Nick does (he puts cheese on fucking everything) they would certainly be backed up.
However, given his digestive system is likely both lubricated and prone to aggressive reactions from all the dam fatty oils he consumes, I would almost wonder if the cheese is necessary to prevent him from diarrheaing his brains out.
My favorite thing about our digestive system is that being backed up and diarrhea are BOTH symptoms of constipation!!
Given just how much fat he carries around his lower abdomen, and how its actually rather a firm jiggle almost solid I would be willing to bet hes carrying MASSIVE amounts if excess in his intestines. His gut flora is likey non- existant, which means his immune system is Trash! Sorry. The human gut is amazing!