I think this is all a bunch of BS. First of all, Davis is employing anecdotal evidence. That's why he wrote a book instead of a scientific paper (since you need actual empirical evidence in science). Well, that and the fact that books make money, while papers just advance science.

Gliadin has always been in wheat. It is a type of gluten.

You want to know why people lose weight when they dump wheat? Wheat is a concentrated source of calories, mostly carbs. That is a very good thing when people are forced to live on a healthy number of calories each day. You know, the balanced meals, with no pizza, capachinos, donuts, candy bars and cokes in between.

When you remove the concentrated source of calories (and nutrition) you end up consuming less calories and thus lose weight.

I'll bet a shiny silver dollar that people who eat a lot of wheat, but only consume 2,000 calories a day, and who don't lay on their asses all day don't get wheat belly.

It isn't wheat belly. It's fat ass belly from eating 3,000 calories a day and thinking that because you walked up the stairs to get from one padded seat to the next that you exercized today.

Or maybe the wheat crust is really the reason that pizza is so unhealthy. Yep, must be. It isn't the grease, the pepperoni, the cheese......it's the wheat!