Although the allowable amounts are small, the consequences are huge for those 1 out of 100 Americans who suffer from celiac disease, the best-known form of gluten intolerance. The disease is a chronic inflammatory disorder of the small intestine triggered by ingesting certain storage proteins, commonly referred to as "gluten," that naturally occur in some cereal grains.

The FDA could make a decision in August, but it is more likely the ruling with the definition will come out in September or October