One Piece Big Mom Eats. The Devil Fruit power is gained by ingesting it and Big Mom did that along with Mother Carmel herself. While there may be some survivors this was heavily implied by the scene in question.
Big Mom can eat a lot but since she eats sweets predominantly. While Wapols whole thing is eating I dont think he can eat nearly as much as BM or Luffy. The Devil Fruit power is gained by ingesting it and Big Mom did that along with Mother Carmel herself.
One Piece Manga and Anime Vol.
83 Chapter 829 p. 2-17 and Episode 835 Luffy managed to get Big Mom to start screaming. 85 Chapter 849 p. One Piece Manga Vol.