Can my dog have onions?
No. Onions are toxic to dogs and can damage red blood cells. Call your vet immediately.
Repeated bites or a large portion can cause real problems even if symptoms are not immediate.
Why it is or is not safe
Onions can cause anemia and serious health issues in dogs.
What to do
Do not feed any amount.
How much is dangerous?
Large amounts of onion are more likely to cause harm, but repeated small amounts over time can also be dangerous. Onion toxicity depends on your dog’s size and the total amount consumed.
If your dog ate a significant portion of onion or onion-containing food, contact your veterinarian.
Symptoms to watch for
Vomiting weakness pale gums lethargy
Why are onions toxic to dogs?
Onions contain compounds that can damage red blood cells and lead to anemia.
Are small amounts of onion safe?
Repeated small amounts can still be harmful. Toxicity depends on your dog’s size and total intake.
What symptoms should I watch for?
Vomiting, weakness, pale gums, and lethargy may appear within a few days.