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My puppy ate onion stock and is vomiting. Is it enough to hurt her?

Updated On September 23rd, 2025

All of my frenchies are used to eating home-cooked food. I recently switched to cooking it myself. Due to hesitance to eat the new food, I researched & found that beef broth often encourages eating. All I had was beef stock which I thought was the same. When my 3.5 month old puppy went to vomiting (weighs around 9-10lbs), I looked & realized the stock contained onion. I have been watching for signs of toxicity, but was wondering if the stock had enough onion in it to hurt her?

1 Answer

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on July 20th, 2018

Hello, its likely that the onion in the broth was not sufficient to cause toxicity. Onion toxicity typically occurs in dogs that eat a large amount of onion and will cause anemia. Signs of anemia due to toxicity may include pale gums, panting, lethargy, labored breathing, and collapse. If any of these are noted, your puppy should be seen immediately. I am most concerned that the vomiting is likely secondary from the recent diet changes. You can offer him a bland diet of plain white rice, skinless and boneless chicken, and low fat cottage cheese for the next 3 days. If he is doing better, you may then encourage that he eats puppy food over cooked food. This is to ensure that your puppy has all of the essential nutrients he needs for his growing phase. Most commercial puppy foods are balances to support this stage of life. If your puppy is not improving on a bland diet, then she should be evaluated by a veterinarian as other things could be causing her signs. This includes any infection with a virus or parasite. Hope this helps and best of luck.

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