I haven't had time to read this article, but thought I'd pass it on, and hope for others to comment. Best, Kathrynne > Levodopa Slows The Progression Of Parkinson's Disease http://www.pslgroup.com/dg/10101e.htm The results of a study show Parkinson's patients treated with L-dopa had lived longer and had slower disease progression compared with untreated patients. -- Kathrynne Holden, MS, RD Medical nutrition therapy Author: "Eat well, stay well with Parkinson's disease" "Parkinson's disease: assessing and managing unique nutrition needs" http://www.nutritionucanlivewith.com/