Do you know what castoreum is?! This food additive is derived from certain glands of the beaver and it can be used as a flavoring ingredient in foods. Although it is a flavoring ingredient, it is not a vanilla, raspberry, or strawberry flavoring, as is often reported. Instead, it is a flavor enhancer or modifier.
Castoreum is also used in perfumes for a musky scent or to give leather overtones, as well as to help preserve the fragrance for longer. By the way, castor oil can perform this same function, and the similarity of the names is no accident. Castor is French for beaver, and castor oil got its name from the animal because of the oil’s usefulness in replacing castoreum.
https://culinarylore.com/food-history:flavoring-ingredient-extracted-from-beaver-glan/
You are not simply what you ‘eat’ but rather what you ‘digest.’