Just gonna throw out my OPINION here.... the SECOND study was more in depth and found that, unless you have Celiac Disease, that gluten intolerance is a bunch of hooey! I believe this whole-heartedly. Celiac disease is an autoimmune condition that can be diagnosed and treated and symptoms are triggered by the ingestion of gluten. For real. You either have the disease, or you don't. Here's the article regarding that.
http://www.forbes.com/sites/rosspomeroy/2014/05/15/non-celiac-gluten-sensitivity-may-not-exist/
People are a tad crazy about their diets these days. Allergies and sensitivities have become VERY popular and trendy. People are not eating to stay alive these days, they're living to eat. And they have lots of excess time and energy to devote to fussing about their food. Plus we've got a whole generation of kids who are now adults that got to FUSS about what they did and didn't like. I have a friend who's 14 year old will eat bread, cheese, and chicken tenders. Period. That started a long time ago and he's too far gone now. Horrible diet and bad nutrition. But that's his mother's fault.
Anyway, if people wanna eat and drink gluten free, that's fine. But the human body can accommodate gluten just fine in a non-Celiac Disease situation.
You can't believe how amazingly fussy and crazy people have gotten about their food. Working in food service I see it daily.
The other day, I had a lady rattling on and on about all her sensitivities and allergies ..... listing all these ingredients and her husband was behind her shaking his head and waving his hands at me and mouthing the words, "SHE'S NOT ALLERGIC, DON'T BELIEVE HER!" It's a new type of insanity that we've got. It's very popular.
Bottom line, if you have Celiac's Disease, it's a thing. If you don't have the disease, it's a neurosis. Just my opinion.
p.s. - I love wheat beer!!