This is complete nonsense.
That's cool too, I'm no doctor, it's why I asked. I was just going off what I've heard from other people and doctors. My grandfather had parts of his intestines that were hardened and that had to be removed surgically. From what I'm told, it's from undigested food 'sticking' for lack of a better term in the nooks and crannies of the intestine and hardening over time which sometimes creates complete blockages. Of course, that information was given to me by my grandmother & aunt who were the ones that talked to the doctor, so that information may be suspect too... the whole thing about information passed down, etc.
I've done the master cleanse myself a good many years back. It's a 30 day thing on a mixture of water, lemon pulp, and cayenne pepper. I did it after a long stretch of eating right and exercising and I was on a healthy kick, so I figured what the heck. I'm a meat & potatoes kind of guy, so I could only stick to it for a good 15 days or so. If it was nonsense, I would think that I wouldn't be sitting on the toilet at day 13 & 14 with some of the foulest smelling stuff in the toilet bowl. I guess the $50 bet that I wouldn't go on it and stay on it didn't impede my decision to go on it either, which I lost obviously, lol. That doesn't discredit the experiences that I had while on the thing though.
The roughage thing is just another conclusion I've picked up from talking to others. *shrug*
Sprue is something that either you have our you don't. Maybe it's more common than previously though, or maybe not. But if you don't have it, just eat the gluten and stop agonizing. Do you have symptoms that suggest sprue?
I'm not really agonizing over it. I know I'm a bread eater, and I always will be. I just like to ask questions and get to the bottom of things that either credit or discredit the information that I've already formulated in my previous life experience.