My small dog ate a little onion. Will he get sick? What should I do?

Hello. If it was just a one time small piece, he will be fine. A dog this size would have to eat a tablespoon or so of cooked onion to even begin to have any issues. He will be fine. Thanks for using Petco Pet Education Center, formerly Petcoach.

The dose of onion in dogs that is toxic is about 0.5 grams per kilogram of body weight. For a 10 pound dog, that would be about 20 grams of onion. There are about 5 grams in each teaspoon, so Marlin would have to eat over 4 tsp of onions in order to be concerned about toxicity. The biggest concern comes with dehydrated onions which are much more concentrated than fresh onions. It sounds like Marlin will be fine, but please contact your veterinarian if you have any concerns. I hope that was helpful! Thanks for using Petco Pet Education Center, formerly Petcoach.

It sounds like you did the right thing for Loki so far. If you ever have questions about what is safe to give him or your other pets, please feel free to ask us here on Petco Pet Education Center, formerly Petcoach! That is what we are here for. I'm sure your vet's office would not mind to answer questions if you call them either. Keep an eye on Loki for the next few days because, as you already know, onions can be very dangerous in these little guys. If you notice that Loki seems more lethargic or tired than normal, take him to your vet right away. Once there your vet can perform a lab test (a CBC) to make sure the onions did not cause a problem.

Hello and thank you for contacting Petco Pet Education Center, formerly Petcoach. Onion in toxic to dogs but the toxic dose is fairly high. Sadie would have to eat more than a half of a large onion (or a whole normal size onion) to get into any trouble. She may show mild signs of stomach upset, like a bout of vomit or loose stools but there should not be any more concerning symptoms.

A few pieces of onion ingested by a dog of Mochi's size will likely cause nothing worse than some minor stomach upset, if anything at all. She would need to eat 2 or 3 med/large onions in order to be at risk of serious toxicity. If she develops vomiting or diarrhea but continues to behave normally, you can fast her for 24 hours then feed a bland diet in small, frequent amounts until symptoms resolve. Transition slowly to her regular diet afterwards.

Thanks for using Petco Pet Education Center, formerly Petcoach! This is not likely to be an issue at all. This if it had any onion powder was likely a tiny amount and he is a large dog. I would not be concerned about this. Good luck and have a great day!

Hi there and thank you for using Pet Coach! The amount of onion and the size of Paddy should not cause any clinical symptoms associated with toxicity. You may see GI signs such as vomiting / diarrhea. I would monitor for now and if you notice any signs such as lethargy, inappetance, vomiting blood, etc., I would have a veterinarian examine Paddy and test her blood. I hope this helps! Please let me know if you have any other questions / concerns. I am also available via consultation if needed.