Most indoor cats are missing something their outdoor ancestors had access to every single day of their lives. And without it, a chain of small problems starts in their mouth and ends up affecting their entire body.
This isn't a theory. It's a pattern that's been observed for years inside the small online communities of cat owners whose cats have lived to 20, 21, 22, even 23 — and inside the families that pass these habits quietly from one cat owner to the next.
One of the people who first noticed the pattern was Helena Marsh, a feline-nutrition writer who spent more than two decades interviewing owners of long-lived cats. After collecting hundreds of these stories, she noticed something that bothered her: