For the most part, this group of sensitivities is simply the association of a food or ingredient with an adverse physical reaction in certain individuals. Only some of the sensitivities have been proven through extensive research while the vast majority require further scientific exploration. The other cause and effect associations are unproven. The symptom is difficulty breathing. For some individuals who are highly sensitive, a severe and life threatening asthmatic reaction can occur especially if the exposure to sulfites was high.
Cereal grains can cause celiac disease.
The disease is a nutritional disturbance caused by improper absorption of most nutrients due to intestinal damage resulting from exposure to cereals. The symptoms are malnutrition, distended abdomen, diarrhea, anemia and bone pain. The association between migraine headache and specific foods is uncertain. A migraine headache is suggested to be caused by a sensitivity to chocolate or cheese. The migraine condition is different from the typical headache.