Hi Lyndal,
Welcome to the NeuroTalk Support Groups.

Some of the members in Parkinson's Disease Forum use Mucuna.

You could try a forum search using keywords. Link below.

http://neurotalk.psychcentral.com/search.php

There are a number of different forums here that you may be interested in, including Attention Deficit Disorder, Medications Forum, Vitamins, Nutrients, Herbs and Supplements Forum etc.. The best way to find where you need to post is to just go through the main index page.

http://neurotalk.psychcentral.com/index.php

You'll also find a lot of information in the 'Sticky' threads at the top of most forums and you'll also find very supportive and caring members here.

take care.