Water does not contain any fiber at all, but does not cause constipation. Neither does water with sugar. Pure fat does not contain any fiber either, whilst it keeps the bowels open. In fact: Too much of anything that does not cause constipation (like sugar and fat), moves the bowels.
Definition of rigatoni for English Language Learners. : a type of pasta that is shaped like short, wide tubes.
Geronimo Stilton is a best-selling children's book series published by Edizioni Piemme of Milan, Italy, since 2000.