I am 48 year old male with PD for 13 yrs(since diagnosed). About 6 yrs ago during annual physical exam with internest/GP, one of the standard blood screens showed that I was below the norm in Folic Acid. Dr. said to take Vit B-12 (100mcg./day) which I do still. To my knowledge this had no relationship to my PD, but will ask Dr. at next physical which happens to be in a few weeks. Stephen Holahan ([log in to unmask])