Can Cat Eats Onion

Can Cat Eats Onion

Here we can see, “Can Cat Eats Onion”

Even in tiny doses, onions are highly hazardous to cats. If a cat consumes onions and does not seek veterinary help right once, swallowing onions can be lethal to cats.

Dr. Jeff Werber, an Emmy-award-winning veterinarian, explains why cats are susceptible to onions and that it only takes a small amount to make them sick. Cats are especially vulnerable to onions, which can cause anemia, liver damage, and even death.

Why are cats unable to consume onions?

Onions contain a chemical known as thiosulphate, which is particularly toxic to cats (and dogs). It can cause anemia in cats by breaking down their red blood cells (aka a lack of blood cells).

Dr. Hanie Elfenbein, a veterinarian at the Humane Educational Society in Tennessee, told The Dodo that anemia means there aren’t enough red blood cells to deliver oxygen to all body cells. This eventually results in a slew of symptoms and a sick cat.

Thiosulphate is found in both onions and garlic and should be avoided. This rule applies to any vegetable in the allium family, which includes shallots, onions, leeks, and chives (which you should avoid!).

Onions can poison cats in any form. Onion powder, onion salts, cooked onion, and dried onion are all potentially harmful. Even a tiny amount of onion in broth might be detrimental to your cat, so avoid it.

Also See:  Can Cat Eats Ginger

How much onion is toxic to cats?

According to Dr. Wooten, it only takes roughly 5 grams of onion per kilogram of body weight for your cat to start showing symptoms.

This would be a couple of onion slices for a 10-pound cat.

But that doesn’t mean you can’t give him a smaller portion. Because onions are so toxic and every cat reacts differently, it’s best to avoid them entirely.

Onion poisoning symptoms in cats

“Not all cats have the same reaction to onions. If you suspect your cat has eaten onion, you should take him to the veterinarian straight away, according to Dr. Elfenbein.

The following are some of the most prevalent indicators of onion toxicity in cats:

  • Difficulty breathing
  • Upset stomach
  • Increased heart rate
  • Depression
  • Pale gums
  • Discolored urine

“If your cat consumes onion, he may first experience a severe stomach discomfort because the onion damages the stomach and intestines,” Dr. Elfenbein explained. “He might vomit and get diarrhea.” He will then grow pale, lethargic, and feeble over several days. Severe anemia is the cause of this weakness.”

Kidney damage can occur in extreme circumstances when the cat has consumed many onions.

Onion toxicity in cats and how to treat it

Unfortunately, there is no rapid therapy for onion poisoning in cats, which is another reason why you should never feed onions to your cat.

If you take your cat to the vet for onion poisoning, they will most likely be admitted to the hospital and given intravenous fluid therapy (also known as an IV) to flush the toxin from the body. This can take anywhere from a few hours to several days. “Treatment is costly since it necessitates numerous days in the hospital with IV fluids and probably one or more blood transfusions,” Dr. Elfenbein explained.

User Questions

What if a cat eats an onion?

Anemia in cats can be caused by onion in any form, including powdered, raw, cooked, or dehydrated onion. Even onion powder, which can be included in some infant foods, falls into this category. Onion poisoning can be caused by eating a large amount at once or eating modest amounts daily.

How much onion does it take to kill a cat?

Toxicity. In cats, as little as 5 g/kg of onions and 15 to 30 g/kg in dogs can cause clinically significant hematologic abnormalities (Cope, 2005). Animals that consume more than 0.5 percent of their body weight in onions develop onion toxicosis.

Also See:  Can Cat Eats Watermelon

Is it possible for cats to eat a small amount of onion?

Cats are poisoned by all parts of the onion, including the bulb, blossoms, and stem. Heinz body anemia occurs when an onion causes oxidative damage to red blood cells, making it hard for the cat’s circulation to transfer oxygen to different areas of the body.

Is it true that cats get poisoned by spring onions?

Onions, garlic, shallots, and spring onions might harm your cat’s red blood cells, resulting in anemia. These items are dangerous when consumed in high amounts, but concentrated preparations of onion or garlic, such as onion soup mix or garlic powder, can also be harmful.

Is green onion dangerous for cats?

None. Green onions are harmful to cats in any amount. If you suspect your cat ate some, call your veterinarian or poison control for assistance and, most likely, treatment.

When it comes to cats, how long does onion poisoning last?

You should take your cat to the vet if the vomiting and diarrhea don’t disappear after two or three days. Your cat’s inability to retain food or drink can be fatal.


I hope you found this helpful guide. If you have any questions or comments, don’t hesitate to use the form below.


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