<<Disclaimer:  Verify this information before applying it to your situation.>>
 
The link between diabetes mellitus and Celiac disease does not relate to
gluten or malabsorption causing pancreas damage.  It is due to the
similar tissue types that occur in both Type 1 diabetes and celiac
disease.  type one diabetes comes on in young people and is associated
with lack of insulin( also called juvenile onset).  These two diseases
have tissue types that can be similar, and reports suggest up to 10% of
type one diabetics of causcasian extraction may have celiac disease. In
iowa it is about 6 %. Usually the diabetes is diagnosed first.  The
symptoms of type one diabetes are usually obvious, with weight loss,
passing a lot of urine , increased appatite, blurring of vision. it is
the celiac disease that can remain hidden.
Not medical advice
Joe murray