The reality is italian bread and cold beer will tend to make you fat, if you don't carefully control quantities.
My point is that if you're restricting your diet to a very narrow selection of foods, you are almost certainly also controlling quantities without thinking about it.
It's not so much about what you eat, it's about eating thoughtfully. Be aware of what you're taking in. Know that drinking a 64oz Big Gulp is taking in a LOT of food. I'm sure there are people who sock away the soda pop who might say, "I didn't eat anything all day".
Whatever, something is making people hugely fat. Outrageously, amazingly, shockingly fat. Circus freak fat. Industrial accident fat. I mean, comic book supervillain fat. And it's not because they ate too much brown rice and vegetables, or even Italian bread and mozzarella.
I believe the food and chemical industries have been experimenting on humans for years without our consent. You never saw people this fat when you were little. Well, I don't know how old you are, but not when I was little. I mean, there were fat people, but they looked like, I don't know, Jackie Gleason, not fucking Jabba the Hutt in stretch pants. And not just one or two. If you move around the city during the day, you will see thousands of people who are not just a little plump, but enormously, freakishly fat. When I was little maybe I'd see one of those every year.
So, what's changed? I'm not sure people are eating that much more food. You know who else gets freakishly large in the past 20 years? Livestock. And you know what they eat? GMO corn. I'm not sayin', I'm just sayin'.