Cinnamon is high in fiber, iron, calcium and manganese. It can be used as a treatment for fungals, and other types of yeast and aspergillus. It gives relief to arthritis pain. Since it has anti-bacterial properties, it helps to lessen the growth of bacterias on fresh food.
It is also known to promote respiratory health and keep bacterial infection such as E.coli at bay. https://www.insidescience.org/news/fighting-e-coli-outbreaks-cinnamon
Then there are the health benefits for humans. At the end of the day, cinnamon is one of the most delicious and healthiest spices on the planet. It can lower blood sugar levels, reduce heart disease risk factors, and has a plethora of other impressive health benefits. Just make sure to get Ceylon cinnamon, or stick to small doses if you're using the Cassia variety.