Wonder how this GABA would affect a person who has dementia or Alzheimer's disease?
I am interested in this stuff because my grandmother had dementia and now my mother has it and I don't want it!!!
I suggest doing some research on the internet. I recall reading that there are some supplements out there, which claim to prevent, slow down, even reverse Alzheimers. I can't think of the names of a single one, but do remember some sounded quite credible. You can also search for supplements + Alzheimers, or check out some nutritional supplement sites and search there.
I personally think that the supplement industry is ahead of accepted medical practices, many of these things have been researched outside of the US, but those results are not accepted by the FDA.
One place you may want to search as a start, is:
http://www.lef.org It's the "Life Extension Foundation" organization and I like them, because they don't just tell you some summary, but also give you specific medical paper references.
I went to their site and put in "Alzheimer's" and got a lot of articles. Check them out. The more you know, the more likely it is that you can do something to prevent it in yourself and maybe even help your Mother.