http://bastyr.edu/news/general-news/2016/10/diet-exercise-and-supplements-affect-parkinson%E2%80%99s
The results were published I believe in june this year, from feedback from over 1000 patients. The study is ongoing, Not easy to find the published outcomes, but the researcher has kindly allowed me to upload to my site here: http://www.drewstersmillions.co.uk/pro-pd-results.html
For any information about the study, please contact Laurie Mischley : [email protected]