[jobu]

Study seems to follow common-sense - change the nutrients ingested and different gut bacteria will flourish.

What I'm really interested in is which types of bacteria create a feedback loop by releasing chemicals/hormones to increase hunger or cravings for specific foods. Definitely not an easy thing to determine given all the variables, but it seems very likely based on the other studies showing bacteria can promote fat or thin mice: http://www.scientificamerican.com/article/how-gut-bacteria-h...

[derekp7]

Which means that a cure for obesity (or at least one of the components of a cure) can be as simple as an antibiotic that targets the "bad" gut bacteria. Very interesting.