<<Disclaimer: Verify this information before applying it to your situation.>> There's an interest article about blood testing first degree relatives of celiac patients. It's at: http://gastroenterology.medscape.com/reuters/prof/1999/12/12.10/ep12109b.html You may need to register at the site to read it, but registration will bring you email (if you want it) about medical news in a wide variety of fields, and you can choose what fields you want. It is free. Good luck and good health! Bobbi in Baltimore