Short answer
Yes, some pet snacks could include beef jerky as a flavoring. It's a mild risk for cats due to high salt and potential onion or garlic powder. Check ingredient labels carefully and avoid giving any human jerky directly. Offer your cat a bland treat instead, and call your vet if you see vomiting or lethargy.
Beef jerky — Food safety facts
Feed with care · Cats · full breakdown on the linked food page
Very salty, and most brands contain onion or garlic powder — a real allium risk.
The full verdict, portion guidance and serving notes are collected on the Beef jerky food facts page.