Gluten, which is found in wheat, may exacerbate Parkinson's-related symptoms in some patients. A brain scan was done on the man that showed abnormalities that were consistent with lower levels of dopamine production, which when combined with the clinical data, led the doctor to diagnose him with PD.
The case study involves a major recovery of a patient thought to have PD who, after a three month gluten-free diet, had an almost complete elimination of symptoms.