For the last few weeks, it seems like everyone we know has been talking about oil pulling — heck, even Divergent star Shailene Woodley is a fan of swishing oil around in her mouth! Like most proponents of the Ayurvedic practice, Shailene says that oil pulling keeps her teeth white and kills plaque. But does it really live up the hype? Before you run to the bathroom for a 20-minute swishing session, you'll want to watch our breakdown of the ancient practice! Front Page Image Source: Thinkstock/joannawnuk