All parts of the pig can be eaten. However, I'm not sure if they should be eaten. In the first picture I'm eating Jokbal- Pigs feet which are slow boiled for two to three hours in soy sauce, ginger, black taffy and many other secret ingredients. The meat becomes very tender, the fat pillowy, and the skin chewy.

I've had better jokbal. This one tasted like feet and my first bite had a toenail. gross.