Souvenaid

http://blogs.vancouversun.com/2012/07/19/the-souvenaid-memory-drink-what-alzheimers-experts-say-about-the-m-i-t-patented-elixir/

Could this also help people with PD ? There are substances in it that have been tested preclinical for PD.
The omega-3 fatty acids,uridine and choline look beneficial to PWP:

Impact of omega-3 fatty acids in Parkinson's disease
http://www.sciencedirect.com/science/article/pii/S1568163711000225

Restorative effects of uridine plus docosahexaenoic acid in a rat model of Parkinson's disease
http://www.sciencedirect.com/science/article/pii/S0168010208002174

CDP-choline: pharmacological and clinical review.
http://www.ncbi.nlm.nih.gov/pubmed/8709678

The only evidence I've seen for vitamin deficiency in PD is that for vitamin D though and I think the jury is still out on that.......

I shall look out for Souvenaid.......
Here is a more detailed description of Souvenaid's action:
http://www.drugdiscoverynews.com/index.php?newsarticle=6406