I ate two small tubs of the Woolworths probiotic yogurt every day this past week. Subjectively I think my mood was a bit better although it is difficult to know for sure since there are so many factors involved. I seemed to need less sleep.
Today I bought some yogurt made by Danone which contains a trademarked strain of
Bifidobacterium Animalis called
Bifidus Actiregularis. Below is a picture of this bacterium:
Image: Wikimedia Commons
It is gross to think I am eating yogurt which contains millions of this organism.