Short answer
No, regular poppy seed intake isn't safe for cats. While a few seeds occasionally cause no harm, daily consumption could lead to opiate buildup over time. Watch for lethargy, confusion, or unusual drowsiness after eating them. Skip intentional feeding and call your vet if you notice these signs.
Poppy seeds — Food safety facts
Feed with care · Cats · full breakdown on the linked food page
Contain trace opiates and can show up on a drug test. A few on bread are harmless.
The full verdict, portion guidance and serving notes are collected on the Poppy seeds food facts page.