One of the first kinds of effects reported from those starting up with LiveBrew is an improvement in the quality of sleep, mood, and cognitive function.
There is a growing body of research linking the function of the gut biome with the quality of neurological function. This includes a reduction in disturbed sleep, reduced "brain fog", and improvements in the ability to cope with stress and anxiety.
The Italian researchers used a multi-strain probiotic that included many species that are in LiveBrew. The mechanisms of action responsible for the results in Italy may well be at work for those taking LiveBrew. Please see: https://www.frontiersin.org/articles/10.3389/fpsyt.2019.00164/full
We have seen this for years now with the use of our animal nutrition products in horses, dogs, and cats suffering from behavioural or anxiety issues and have conducted several case study groups to document these effects. Please see http://www.biobrew.net.nz/Research for these reports.