We recommend that adult cats have a wellness exam at least once every year. When they're older and they're senior cats, and maybe we're following a particular issue, they might need more than one examination or checkup in a year. But as a minimum, cats should get wellness exams once per year.

Medications that are safe to give to your cat are ones we give them after a full history, physical exam, assessment, and perhaps even some diagnostics. Medications that your veterinarian prescribes are the best ones to consider.

So this actually hasn't been studied all that extensively. There may be some genetic predisposition for certain cat breeds, but it's not really well-known.