the web cast lecture on the Parkinson's pyramid by Dr. David Heydrick, scientific advisor to PAN is VERY VERY informative from a scientist who has Parkinson's--he has young onset PD. He has devised a list of nutritional supplelments, vitamins and foods that have a scientific rationale for taking, if not scientific proof. kind of information that is discussed on this web site all the time--and Ron Hutton, your Curcumin and Choline are listed by this physician.