You might know about Pro-Biotics but have you heard of Pre-Biotics?
For a while now I have been reading up on Pre-biotics and how there are some African cultures that have very low incidence of disease that scientists are now attributing to the volume of fiber in their diets and how this fiber feeds their gut bacteria.
If you did not see this documentary "The Diet Myth" last night it is really worth watching.
Here are some other links about Pre-biotics
Monash University website about Pre-Biotics
ABC's Catalyst Show - "Gut Reaction"
Websites highlighting foods that are good for your gut microbes
One Green Planet
Here are some scientifically published papers on the subject:
Fiber and Prebiotics: Mechanisms and Health Benefits
Dietary modulation of the human colonic microbiota: Introducing the concept of prebiotics