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Feta lives in brine, and it shows: it's one of the saltiest cheeses a dog is likely to meet, on top of being rich. A crumble off the counter is fine; a block, especially for a small dog, earns attention.
Check Feta for your dog
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Why Feta needs caution
Brining loads feta with sodium: the ASPCA lists excess salt among people-food risks, with large amounts causing increased thirst and, at the extreme, tremors. Feta is also relatively high in fat and retains more lactose than aged cheeses, so it stacks all three dairy concerns in one crumble.
The salad problem
Feta usually arrives in company: Greek salads bring red onion, and Mediterranean dishes bring garlic and olives. Onion is the ingredient that turns a cheese theft into a vet call. If the feta came off a plate, reconstruct the plate.
Signs to watch for
Increased thirst, gas, loose stool; large salty amounts: vomiting, wobbliness
What to do next
For a crumble, nothing. For a block-sized theft, keep water freely available (never restrict it after salty food) and call your vet if your dog is small. Check whether onion came along for the ride.
•ASPCA APCC, people foods to avoid feeding your pets (milk and dairy, salt)
Compiled from veterinary poison-control and medical reference sources, including the ASPCA Animal Poison Control Center, the Pet Poison Helpline, and the Merck Veterinary Manual. This is general educational information, not a diagnosis or a substitute for examination by your veterinarian. DogSafe's severity ratings are our own assessment, calculated from published guidance and your dog's weight. In an emergency, call ASPCA Animal Poison Control at 888-426-4435 or the Pet Poison Helpline at 855-764-7661.