21. Cinnamon

Cinnamon is a beloved spice, but here’s a dirty little secret: commercially available ground cinnamon can sometimes be contaminated with animal feces. This contamination occurs during harvesting and processing, and although steps are taken to minimize it, the risk still exists.
Why You Should Avoid It
While the risk of contamination is relatively low, it’s enough to make you reconsider sprinkling cinnamon on your morning oatmeal. When possible, opt for organic cinnamon or grind your own from whole sticks to reduce the risk of contamination and ensure you’re getting pure spice.