Non Celiac Gluten Sensitivity

What causes non celiac gluten sensitivity?
The pathogenesis of NCGS is not yet
understood.  It was thought that gluten,
as occurs in Celiac disease, is the cause.
Many people experience the symptoms
similar to that of Celiac, without the
positive diagnosis. 
To get tested for NCGS, you need to rule
out Celiac disease.  If  ruled out, your doctor
may recommend a  gluten free diet.  If
your symptoms improve, it may well be
a NCGS.