I had a fat roommate once (I bailed well before the one year lease was up) and she'd complain about not being able to lose weight any time she'd see me getting ready for the gym. I'd mention the usual stuff about eating fewer calories than you burn. One time she goes "That might work for some people, but I'm more concerned about what I eat than how much". I get back from the gym a couple of hours later and see her eating about 3k calories from Smashburger just for her dinner. Yes, piggy, this is why you're blowing up faster than a suicide bomber.