Allergy and some forms of Intolerance, and the more intensive reaction
resulting in Celiac
disease, is essentially due to the body's development of an immune
response to certain protein molecules in wheat (and some other grains).
In most people the immune system does not recognized these molecules and they are ignored, like the immune system usually ignores the innate molecules of the human body. The disease develops by the immune system learning to recognize the molecules in wheat and thus reacting to them. This also happens at times to innate molecules of the human body, resulting in autoimmune diseases.
There are many pathways for immunologic diseases to develop.
Some people can recognized a particular pattern of development. At first they notice a reaction only to some isolated source(s), one particular food. Then later, the reaction becomes generalized to a whole class of foods, such as any containing wheat.
This author's disease started out with isolated reactions to Nabisco products, Ritz, and General Mills' Cheerios, then progressed to all wheat products.
It is not known if this was due to pesticide use, gmo product, or something else. Information is needed as to other victims and people with knowledge of the manufacturing chain.
If you have recognized the pattern and can identify any sources, please write. Gluten at glutenintolerance dot biz.
If you have an internet site focused on gluten disease, or would like to help inform others about this process, please link to this site.