I’m on a quest to figure out why Dunkin’ Donuts iced coffee destroys my digestive system. I don’t know about anyone else, but coffee in general tends to send me to the bathroom sooner rather than later. Not a big deal, if anything an emptying of the bowels first thing in the morning is a good thing, but the Dunkin’ Donuts iced coffee is a whole different story. I mean, I’m in the bathroom before I’ve finished the cup EVERY TIME. So in my attempts to look for a warning label, I found something very interesting: