Prebiotics
Here is something i had read about but did not really pay attention until lately
from wikipedia Prebiotic
Nutrition
Prebiotics are non-digestible fiber compounds that pass undigested through the upper part of the gastrointestinal tract and stimulate the growth and/or activity of advantageous bacteria that colonize the large bowel by acting as substrate for them
Roberfroid offered a refined definition in the March 2007 Journal of Nutrition stating: