“Lil’ Bub,” a four-year-old yellow and white indoor cat, chows down on some freshly grown oat grass that his owners keep inside their home. JOPLIN, Mo. — If you let your cat roam the outdoors, or you ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Ideas abound for why cats eat grass, including to clean their intestines of parasites, to get ...