This HND piece covers familiar (probiotics) and not-so-familiar ground (prebiotics). Probiotics, of course, are the good microorganisms living in your gut. Prebiotics are particular plant fibers that favor the growth of good bacteria. By some accounts, they also retard the growth of the bad actors.
We introduce you to the visionary Nobel prize-winning biologist from more than 100 years ago who first promoted the idea that supplementing good bacteria could improve both digestion and immunity. Even though this guy was a Nobel laureate (in a related field), he was going against the "settled science" of his day, and didn't exactly get a lot of love.
But, he shouldn't feel too bad. The importance of the colon in matters other than digestion has only very recently stopped being a tough sell. As it is, there are more neurons in the gut, than in the spinal cord.
Read the complete article.