How long it takes depends on the doctor. An ex of mine was talking about gluten sensitivity in 2005, but none of the docs she visited would admit to such a th

How long it takes depends on the doctor. An ex of mine was talking about gluten sensitivity in 2005, but none of the docs she visited would admit to such a thing being possible (correctly, it now seems). According to this article, the original study that gave credence to such claims was done in 2011, and the more complete followup that removed that was presumably 2015 (since this article itself is dated then). A diagnosis in 2012 would have been hip, but not necessarily before the publication of the initial study.