Flutterby™! : Gluten Sensitivity

This over-states the case a little bit, the sample was 37 subjects who claimed gluten sensitivity in the previous study by the same researchers: Researchers Who Provided Key Evidence For Gluten Sensitivity Have Now Thoroughly Shown That It Doesn't Exist:

The subjects cycled through high-gluten, low-gluten, and no-gluten (placebo) diets, without knowing which diet plan they were on at any given time. In the end, all of the treatment diets — even the placebo diet — caused pain, bloating, nausea, and gas to a similar degree. It didn't matter if the diet contained gluten. (Read more about the study.)

The paper is No effects of gluten in patients with self-reported non-celiac gluten sensitivity after dietary reduction of fermentable, poorly absorbed, short-chain carbohydrates.