Oil Pulling

Have you heard of Oil Pulling?

It involves swooshing oil around your mouth for 20 minutes every morning.  It purports to leave your mouth fresh and toxin free.  You can read more about it here

I plan on starting it tomorrow morning using Coconut Oil.  Common advice is to do Oil Pulling on an empty stomach as there is a high risk of vomiting (eek!)

I wonder can it really whiten teeth?