Onion powder, onion salts, cooked onion and dried onion can all cause serious problems. Even a small bit of onion in broth is harmful, and cats should steer clear of it. It only takes about 5 grams of onion per kilogram of body weight for your cat to start having symptoms. For a 10-pound cat, this would just be a couple slices of onion. But that doesn’t mean it’s ok to feed him a smaller bite. Since onions can be so dangerous and every cat reacts differently, it’s very important to avoid onions altogether.
There are many foods that are indigestible for our cats and onions are one. Onions contain thiosulphate – a harmful substance if your pets ingest them because their bodies are unable to break that chemical down.
Thiosulphate, if ingested, attacks your cat’s red blood cells and can lead to hemolytic anemia.
Another harmful compound onions contain is organosulfur – a poison that their digestive track absorbs. If your cats are eating onions on a regular basis, the toxicity builds up and the harm accumulates and could lead to the loss of your pet’s life.
All onions are toxic for cats!
Even baby foods contain trace amounts of onion extracts as a flavoring and this can cause your pet harm.
Please tell all people who want to help strays by giving them their left-over food!