Beaver butts emit goo used in vanilla flavored foods

"Next time you pick up a vanilla candy, think twice. A chemical compound used in vanilla flavored foods and scents comes from the butt of a beaver.

Castoreum comes from a beaver's castor sacs, located between the pelvis and base of the tail. Due to its proximity to the anal glands, the slimy brown substance is often mixed with gland secretions and urine.

And the worst part? The FDA-approved castoreum is not required to be listed as an ingredient on food items. Manufacturers may list "natural flavoring" instead.

https://www.foxnews.com/science/beaver-butts-emit-goo-used-in-vanilla-flavored-foods