This can be tested. Deferoxamine chelates out the iron along with removing blood for transfusions. Iron is a powerful oxidant in the brain and needs to be removed. Other symptoms are joint pains, abdominal pain, tinnitus, heart disease, and disordered glucose metabolism. High vegetable and fish fat intake results in a good outcome.
Schizophrenia is almost nil in highland New Guinea where practically no grain is consumed.
There is a correlation between celiac disease and schizophrenia. It has been suggested that neuroactive peptides from gluten grains are a major cause of schizophrenia. Twenty percent of schizophrenics have antibodies to wheat. While it's true you may have the genetic tendency to schizophrenia, studies suggest these things will help you to avoid this condition. Dr. Lendon Smith of television fame provides the content for Alternative Health Tips ezine.