Gluten-Free Bread Muffins or Gluten-Containing Bread Mugs?

In 2011 a double-blind randomized placebo controlled trial was published which tested to see if patients can claim a veritable bowel type symptoms despite not having celiac disease. The small group that got the actual gluten felt worse still. So they concluded this non-celiac gluten intolerance may actually exist. It was a small study though and even though they claimed the gluten-free bread muffins were indistinguishable, maybe at some level the patients could tell which is which.