Despite the rarity of celiac disease, a growing number of people in the Western world are adopting a gluten-free lifestyle. In Australia, for example, for every person who's diagnosed with celiac disease, there are 20 others eating gluten-free food. 

Many of the people who pursue a gluten-free diet out of choice believe themselves to be gluten-sensitive.

Instead of receiving a proper diagnosis, however, many people are self-diagnosing as gluten-sensitive and eating gluten-free by choice. Studies have shown that the overwhelming majority, 75%, of people who claim to be gluten sensitive show no reaction to gluten and a new study adds to that as well.

Ross Pomeroy at Real Clear Science has the details.