Chewing gum comes in a lot of delicious flavors but a lot of them have one thing in common: they're made out of sheep.
To be more specific, many chewing gums are made out of a secretion made from the skin glands of sheep.
The substance, called lanolin, is the stuff that makes chewing gum chewy and is also found in many skin products.
Chewing gums that don't use lanolin are often made out of synthetic rubbers instead.
