The Cinnamon Challenge is an internet trend where participants attempt to swallow a spoonful of ground cinnamon without drinking any water. This challenge became popular in the early 2000s, often shared through videos on social media platforms. The spice's fine texture can cause coughing, gagging, and discomfort, making it difficult to complete the challenge. Health experts warn against the Cinnamon Challenge due to potential risks. Inhaling cinnamon can lead to lung irritation, and swallowing large amounts may cause choking or digestive issues. The challenge highlights the importance of understanding the potential dangers of viral trends before participating.