Are you always think that the natural stuff such as vegetables or fruites are safe? Before I know something, I always think it's a truth.However, ”Natural ” is not always safe.

The cinnamon challenge — attempting to swallow a tablespoon of cinnamon powder in 60 seconds without liquids — isn’t just painful. According to a paper published yesterday in the journal pediatrics. cinnamon misuse was cited in almost 200 calls to U.S. poison control centers during the first half of 2012 with 30 of these cases requiring medical attention.

the ingestion of the powder invariably stimulates the gag reflex followed by inhalation of the powder that’s stuck inside the mouth and throat. The pain then causes rapid exhalation characterized by “dragon breath” upon blowing the powder out. Good times.

Just because cinnamon is a naturally-occurring spice — it’s harvested from the dried bark of several cinnamomum tree species — doesn’t mean it can’t be harmful. Cinnamon is deemed safe for consumption as a food additive under the U.S. Food and Drug Administration’s classification of Generally Recognized As Safe, or GRAS, list. But the FDA is silent on spice inhalation.