Psoriasis patients showed clinical improvement in a trial with a wheat-free diet. In this January 2012 study, published by researchers at the University of Bergen and Haukeland University Hospital, 37 psoriasis patients and 37 healthy controls people were giving wheat to test if the element peptides, found in grain effects psoriasis. The researcher concluded that peptide might be an issue for patients with psoriasis after they saw stimulation of the condition after the subjects consumed the wheat.
In July 2003, researchers from Catholic University of the Sacred Heart, Gemelli Hospital, Rome, Italy, concluded that a significant proportion of patients that consumed a wheat-free diet saw improvements or the disappearance of migraine headaches within six months. In the study, the 90 subjects were given a single photon emission CT brain scan before and after a gluten free diet. They showed a regional baseline reduction in brain tracer uptake in all the patients.