While it seems as though it would be rather simple to do, it is nearly impossible. In fact it can be very dangerous. Some people have been known to choke on the cinnamon, which has not been reported to cause any deaths, but very well could. Cinnamon is very fine, and when a bunch is put into your mouth, it can be inhaled rather quickly simply by taking a small breath.
If you are provided with the cinnamon challenge, simply say “no”.
