I figured out the yeast thing myself - everytime I ate GF yeast bread I felt bad. I would not have know this if I had not started out on a very simple diet of whole foods. Both York and Enterolab have confirmed this yeast problem.

About 43% of people with CD have a sensitivity to baker's yeast according to this study but the antibodies can disappear especially in children. http://www.ncbi.nlm.nih.gov/entrez/q...=pubmed_docsum

There is no such thing as a yeast free diet as yeast is everywhere. It is even in more places than gluten if you can believe that. An example is fruit - many have high amounts of yeast on the skin.

I don't eat stuff with yeast extract because I try to keep my diet as simple as possible and stay far away from processed foods with long lists of ingredients.

Anne