Can Dogs Eat Onion?

Never No — never feed this to dogs

Onion is not safe for dogs. An Allium that damages red blood cells and causes anemia; toxic raw, cooked, or powdered.

What to do if your dog ate onion

If your dog has eaten onion, don't wait for symptoms — contact your vet or a pet poison line straight away: ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661. Note how much was eaten and when.

The right everyday diet for dogs

Most of a dog's diet should be a complete, balanced dog food. Treats and human foods are best kept to under about 10% of daily calories. Foods like onion are extras, not a substitute for a proper diet.

Frequently asked questions

Can Dogs Eat Onion?

No. An Allium that damages red blood cells and causes anemia; toxic raw, cooked, or powdered.

Is onion toxic to dogs?

Onion is not safe for dogs. An Allium that damages red blood cells and causes anemia; toxic raw, cooked, or powdered.

What should I do if my dog ate onion?

Contact your vet or a pet poison line right away — ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661. Don't wait for symptoms to appear.

Source for this rating: ASPCA ↗. This is general guidance, not veterinary advice — always confirm with your own vet, as every animal is different.

Can other pets eat onion?

More foods for dogs

See the full list of what dogs can and can't eat →

Pet emergency?Don't wait — get professional help immediately.