Hope it's ok that I post this article that I found quite interesting.
http://www.news.com.au/lifestyle/health/how-i-beat-my-10-year-battle-with-anxiety-after-discovering-folinic-acid/story-fneuzlbd-1227249692467
Thanks! Shared this with my youngest daughter who has also been experiencing a myriad of perplexing health issues - including anxiety. Her B and D vitamins were recently tested - she's apparently low in both.