The dare is most popular with kids and teenagers, but even the governor of Illinois did it on a live radio show. Not surprisingly, doctors are alarmed at this growing trend. According to this recent article in The Wall Street Journal, cinnamon doesn't break down very fast and can cause gagging, vomiting, or worse, serious lung inflammation.
Read More: Just a Spoonful of Cinnamon Makes the Internet Rounds | The Wall Street Journal
(Image: Emma Christensen)