[QUOTE=zanpar321;1128219]Question. If PWP have a drastically reduced quantity of Prevotellaceae bacteria (which produces higher amounts of H2) and obese people have an over abundance of this bacteria as indicated in the papers below, are there any obese people with Parkinson's? QUOTE]

Good question, and I don't know a single heavy person with PD. We have often wondered about this, as everyone we know with PD, even when originally diagnosed, was thin. I think there is a lot going on here.