Cinnamon challenge is a challenge to swallow a tablespoon of ground cinnamon within 60 seconds without drinking water or anything else.

The challenge seems simple, but its difficult with the aid of water or juice because cinnamon can dry your mouth very quickly. So the challenge can cause cough, choke, vomiting, damage liver, lung infection, and etc.

Check here for the side effects of consuming excessive amount of cinnamon.