Interesting.

As I understand the anxiolytic effects, it is all about a proper balance between glutamate and GABA [1].

Some people get really stressed out when they eat too much glutamate-containing foods. So, perhaps probiotics can help address the glutamate too (?)

Note: some warnings here: [2] (some bacteria produce glutamate!)

[1] http://www.holistichelp.net/blog/how-to-increase-gaba-and-ba...

[2] http://forums.phoenixrising.me/index.php?threads/why-probiot...

I'd be very interested to hear more about your experience. How long have you been taking them? Have you noticed an effect?