This is because our small intestine is actually a huge neat freak, and it takes the time in between digestion to clean everything up, resulting in those eight meters of gut -- really, seven of them -- being very clean and hardly smelling like anything.
sino porque el intestino delgado es  un gran fanático de la limpieza, y se toma un tiempo después  de la digestión para limpiar todo, dejando esos ocho metros de intestino,  bueno, siete en realidad, realmente limpios y sin ningún olor.