My 16lb dog ate a tiny piece of cooked onion. Will he be okay?

It typically takes ingestion of about 0.5% of your pet's body weight of onion to be at risk of onion related toxicity. This calculates out to be approximately 0.15 lbs, or around 2 ounces. Unless your pet ate anything close to that amount or more, it is not recommended to do decontamination for him. With a piece of [onion](https://www.petcoach.co/canigive/dog/onions) that only weighs a few grams I would not be concerned. Just monitor him for the next couple of days for any GI upset, lethargy, panting or pale gums. And if he gets a hold of any more you can always contact the [Pet Poison Helpline](https://www.petpoisonhelpline.com/). There is a charge associated with this call.

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.

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!

Good question! Onions in larger quantities are toxic to dogs but Milo should be fine with that amount. Also for your information there is a poison control call line for animals should you have other poisoning questions in the future. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Milo.

Hello. It takes a fair amount on onion ( like several tablespoons ), or several cloves of garlic to cause any problems in dogs, especially one Moon's size. I would not be concerned at all about this very small piece. Thanks for contacting Petco Pet Education Center, formerly Petcoach.

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.

For this small amount of onion, I think Nova will be just fine. Larger amounts of onion or garlic can cause damage to her red blood cells. If you notice any concerning symptoms, you should have her examined by your vet.