If you have Celiac, this obviously doesn't apply to you. Don't eat gluten. But if you don't have Celiac—and that's 99% of the human population, mind you—there's no reason to be gluten free. You're wasting your time. Even the scientist who started this gluten free craze thinks it's useless to be gluten free. Seriously. People, the father of gluten free think it's bullshit.
Peter Gibson, a professor of gastroenterology at Monash University and director of the GI Unit at The Alfred Hospital in Melbourne, Australia, conducted an experiment in 2011 that linked gluten to screwing with people's gastrointestinal distress. That published paper has served as one of the strongest pieces of evidence for the non-celiac gluten sensitivity that everybody suddenly developed existing.
But Gibson wanted to repeat the experiment and see if he would reach the same conclusion. He couldn't. According to Real Clear Science, Gibson had subjects with 'gluten intolerance' but weren't Celiac take part in an experiment that fed them a high gluten, normal gluten, low gluten and placebo diet for a week and found that there was "absolutely no specific response to gluten."
What happened was that everybody reported pain, bloating, nausea and gas to similar degrees. No matter what they ate—gluten or placebo—they felt sick. The problem wasn't with gluten, it was with their brains. Basically, it's the nocebo effect. People psych themselves out and start believing they're sick.
And it makes sense, ASAP Science explains in this video how gluten is simply a combination of proteins that isn't toxic for you whatsoever:
So. As true as it's always been: If you have Celiac, don't eat gluten. If you don't, just eat it.