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    Includes Expert Content
    Small amount of onion
    jasperh posted:
    Fed my 11lb cat approximately 18 ounces of baby food containing onion powder as the last ingredient over the course of the week. (Vet suggested but didnt say onions are toxic to cats). Cat seems perfectly fine - appetite has even increased, is perfectly cuddly, was never really playful to begin with but chased a string for me a little bit. Only difference is he's been sneezing the past couple of days. Should I be concerned? Everything I'm reading says even a very small amount can be problematic...
    Ann Hohenhaus, DVM, DACVIM responded:
    Onions and their relatives garlic and scallions contain a chemical that can cause damage to the red blood cells. If the damage is minor, the damage will only be visible under the microscope as abnormalities called heinz bodies. If the damage is severe, anemia will result. Both dogs and cats can be affected by eating onions. Especially this time of year when there is extra food around, be sure your pet does not get into the onion gravy or the creamed onions. Although often worse this time of year, I have seen onion toxicity in a garbage hound due to liver and onions in the trash.
    Ann Hohenhaus

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