<<Disclaimer: Verify this information before applying it to your situation.>>
 
To answer your question, stool tests are used, but are by no means the best
method of diagnosis of CD. The fat and nitrogen content of stool is
indicative of malabsorbtion, which may be present in CD, but these tests are
not specific for CD.
 
On the other hand, serological tests for endomysial, reticulin and gliadin
antibodies exhibit a high degree of reliability toward the diagnosis of CD.
 
Sincerely,
 
Vijay Kumar
Research Associate Professor