Many people stereotype the gluten free diet as a way to lose weight and is true you do (I did) and they are not allergic (I am very allergic). So my experience has been that not many people take the allergy seriously. They think that your just a finicky/picky eater with an obsession to loose weight; that you want to be like the celebrities. But no, if you only knew how serious this is. For some is just indigestion, for others is hospitalization, for me is a day that i cant do anything because i feel so bad. So if someone says that they are allergic take it as seriously as any other allergy.The article says to do various analysis: allergy test, blood test, and intestine sample. The last one is the sure way to determine if your allergic.