Celiac Disease & Gluten-free Diet Information at Celiac.com - http://www.celiac.com
How can I determine the amount of gluten from the weight of the wheat in food?
http://www.celiac.com/articles/26/1/How-can-I-determine-the-amount-of-gluten-from-the-weight-of-the-wheat-in-food/Page1.html
Scott Adams

In 1994 I was diagnosed with celiac disease, which led me to create Celiac.com in 1995. I created this site for a single purpose: To help as many people as possible with celiac disease get diagnosed so they can begin to live happy, healthy gluten-free lives. Celiac.com was the first site on the Internet dedicated solely to celiac disease. In 1998 I created The Gluten-Free Mall, Your Special Diet Superstore!, and I am the co-author of the book Cereal Killers, and founder and publisher of Journal of Gluten Sensitivity.

 
By Scott Adams
Published on 07/26/1996
 
For 100 units of whole grain wheat, about 70 units of white flour results from the milling proces

For 100 units of whole grain wheat, about 70 units of white flour results from the milling process. The rest is separately sold as wheat bran or wheat germ. Those 70 units of flour are about 10%- 15% protein, thus about 7 to 10 units of protein for 100 units of whole wheat. The protein is about 80% gluten, thus about 6 to 8 units of gluten for 100 units of whole wheat. Since one typically sees wheat flour as an ingredient, applying the 70% factor implies 8 to 12 units of gluten per 100 units of wheat flour.