Can Birds Eat Onions? All You Need To Know

Understanding the proper nutrition for the species you possess is one of the most critical aspects of being a competent pet bird owner. Like, can birds eat onions? You’re slicing onions and take a little break, but when you return, your bird is chewing on a chunk of onion. Should you be concerned? Is it acceptable for your bird to eat onion? But what if your bird also slips their beak into some onions?

Food toxicity is an issue whether you have a budgerigar, finch, or parrot. Birds adore veggies, so it’s understandable if yours is curious about the flavor of an onion. Whether cooked or raw, onions are particularly harmful to birds, so keep them separate.

Onions are possibly the most extensively consumed vegetable on the planet. You usually utilize onions once a day because of their extended shelf life and many uses.

Continue to read find about can birds eat onions? All you need to know about it. 

Can Birds Eat Onions?

No, birds cannot eat onions. Onions are poisonous to birds in the same way that chocolate is poisonous to dogs. Even a little quantity might harm your bird in any form.

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If your bird consumes too much onion, it may die, so be cautious about what you leave out on the counter.

Onions Nutritional Stats

Onions, Garlic, Vegetables, Spices

The nutritional stats of onion are the following:

  • Calories: 40
  • Water: 89%
  • Protein: 1.1 grams
  • Carbs: 9.3 grams
  • Sugar: 4.2 grams
  • Fiber: 1.7 grams
  • Fat: 0.1 grams

Onions Nutritional Facts

The nutritional facts of onions are the following:

  • Sodium: 4.4mg
  • Potassium: 161mg
  • Vitamin C: 8.1mg
  • Folate: 20.9mcg
  • Manganese: 0.1mg
  • Vitamin B6: 0.1mg

Health Benefits Of Onions For Birds

Sun conure birds eating food on hand. Feeding sun conure birds in Thailand. Close up

Onions poisons birds in any form. There are no health benefits to onions for your birds. Shouldots, garlic, chives, leeks, and other onion-related foods should never be fed to your pet bird.

It includes powdered onion and any cooked or raw onion-containing dish. The onion can harm your lovely bird in the following ways:

Hemolytic Anemia 

Hemolysis is the most severe impact eating an onion may have on your parrot. Hemolysis is the breakdown of red blood cells in animals, and it can lead to life-threatening circulatory problems in birds.

However, there has been little investigation into why onions trigger this condition. It is a kind of anemia that affects the blood. Disulfides found in onions can induce Heinz body anemia, a kind of hemolytic anemia.

The disulfides can break down and burst red blood cells quicker than the body can replenish them once they’ve been eaten.

The symptoms of Heinz body anemia are the following: 

  • Rapid breathing
  • Weakness 
  • Lethargy 
  • Rapid heart rate 
  • Collapse 
  • Death

It might take up to one or two weeks for these symptoms to appear after a parrot has eaten the onion. The majority of the time, the harm has already been done.


Onions also contain sulfur compounds that, when eaten and consumed, form disulfides, which can cause harm. All experts know is that onions contain sulfur-based chemicals that irritate the digestive tracts of parrots.

Garlic and leeks contain the same ingredients, so keep all three veggies away from your parrot. They cause two types of damage – irritating the crop, esophagus, and the parrot’s mouth. The symptoms are the following: 

  • Destabilize the intestinal system
  • Vomiting 
  • Loss of appetite 
  • Diarrhea

These symptoms are severe because they can induce nutritional deficits, and little parrots are more likely to be afflicted than larger ones. Whether you have a little or giant parrot, the outcomes will be the same.


The acidity of onions is well-known. It is what causes heartburn in some people. Onions’ high acidity can cause ulcers in the mouth and stomach in parrots. If a parrot or any other bird has only eaten a tiny bit of onion, this is unlikely to happen, but it’s not impossible.

In parrots, stomach ulcers can lead to:

  • Loss of appetite
  • Weight loss
  • Diarrhea
  • Vomiting blood
  • Lethargy
  • Blood in the urine and droppings
  • Pale and cold feet

If a bird overeats onion, it may get heartburn or reflux. While these side effects aren’t life-threatening, it goes without saying that maintaining parrots as healthy and happy pets should be a top concern for all parrot owners.

Can Birds Have Onions?

Photograph of sparrow in bright light eating rice grains.

Birds love vegetables, and they must constitute a significant component of a bird’s diet to maintain a healthy diet. Onions, except for onions, are harmful to birds.

Onions contain sulfur compounds, which become toxic disulfides when your bird consumes them. These irritate the digestive system lining of the bird, which includes the mouth, esophagus, and crop.

Ulcers can form due to this irritation, and the sulfur can also cause the bird’s red blood cells to burst, resulting in hemolytic anemia and weakening. Furthermore, onions might create digestive problems in your bird.

Onions, in tiny or excessive amounts, can induce intestinal problems. Loss of appetite, vomiting, or diarrhea is common symptoms of these problems.

Can Baby Birds Eat Onions?

Onions aren’t a good source of nutrition for baby birds. When a baby bird consumes an onion, it can develop ulcers, break blood cells, and irritate the bird’s mouth. Onions are highly poisonous to baby birds. Make sure your baby bird isn’t eating onions.

If your baby bird consumes a tiny amount of onion, it may only experience stomach issues for a few days. Diarrhea, vomiting, and a lack of appetite are side effects.

Can birds eat cooked onions?

While frying onions decreases the number of sulfur compounds in the onion, they still contain enough toxicity for birds to be harmed. The nutritional value is also reduced during the cooking procedure. Cooked onions are more likely to be enjoyed by birds.

ñaramelized onion halves with balsamic vinegar in a pan close-up, horizontal

Similarly, onion is used in many human food items as a taste enhancer. If you give your bird food leftovers daily, you’re putting it at risk.

Please don’t share your food with a parrot to reduce the chance of illness or premature death unless you’re confident it wasn’t prepared with onion or garlic.

Are Onions Safe For Birds?

No. Onions retain their poisons in all forms. That implies that onions, in any form, are not suitable for your bird to consume.

Cooked, powdered, or even an “onion soup” might be just as deadly to a bird as a raw onion. And, because onions are in so many foods, it may be simpler to keep your dinners out of your bird’s reach.

Are Onions Good For Birds?

Many veggies are safe and healthful for pet birds, but onions, in any form — raw or cooked — are not. Onions poison pet birds. Under no circumstances should you feed your bird onions.

Onion slice for food or burger ingredient isolated on white background with clipping path

They’re made up of sulfur compounds that, when chewed, can turn into toxic disulfides, which isn’t ideal. Onions are linked to a lethal illness called hemolytic anemia in various dogs. Avoid feeding any form of onion to birds because of the danger.

Avoid feeding other onion family members to birds, such as chives, leeks, scallions, and garlic.

Are Onions Bad For Birds?

You can quickly treat onion poisoning if you find your bird wolfing down some chopped onions. However, you might not always be able to keep an eye on your feathered friend. If your bird exhibits any of these signs, it might be suffering from onion poisoning.


Onions can induce vomiting in birds and a variety of other digestive disorders. Although this isn’t a problematic adverse effect to identify, some owners may mistake vomit for their parrot regurgitating portions of their meal.

The amount of food spat up might help owners distinguish between regurgitation and vomiting. Vomit is more of an uncontrolled expulsion of your parrot’s stomach, whereas regurgitation is usually minor.


Observing your bird’s feces isn’t something most of us like to do. Even so, it might be a key component in identifying whether or not a parrot has onion poisoning. The color and consistency of most bird feces are pretty constant.

If your feces are runny or a different color than average, it might be an indication of onion poisoning or another digestive problem.

Do Birds Like Onions?

Onion bulbs isolated. Onion on white background. With clipping path. Full depth of field.

No, birds don’t like onions. However, they’re intrigued and may devour a piece before you have a chance to grab it. They become more attractive when you cook onions in butter or caramelize them since they get sweeter.

Therefore keep your bird away when you’re cooking or dealing with onions. Onion vapors do not cause harm; only their consumption does.

How Many Onions Can A Birds Eat?

No, birds cannot have even a single piece of onion. The onion contains a chemical that irritates a bird’s stomach and throat lining to the point of causing ulcers. The rupturing of red blood cells caused by these ulcers might result in anemia, a blood disorder.

Birds should never eat onion, and while the amount in the stuffing may not appear to be harmful, it is. It would be best to avoid anything containing onion, including sage and onion stuffing.

How Often Can A Birds Eat Onions?

Golden onions on rustic wooden background

Birds should never eat onions in any form. Onions are poisonous to parrots. When eaten, sulfur chemicals are converted to disulfide, irritating the mouth, tongue, esophagus, and digestive system.

Onions induce hemolytic anemia by damaging hemoglobin, the protein that transports oxygenated blood throughout the body. Onions are acidic, which can cause ulcers in the mouth and stomach.

How To Feed Onions To Birds?

Onions poison birds, so don’t feed them. Birds are poisoned by all forms of onions, whether raw or cooked. At the very least, moderate intake will make your parrot quite unwell. Onion consumption can result in death in the most extreme circumstances.

Onions, however, are highly poisonous to parrots, and even a tiny bit can make them sick. An excessive amount of onion might kill your parrot. We examine why onions are harmful to your parrot and what to check for if your parrot has eaten one.

Can wild birds eat Onions?

Onions are toxic to even wild birds. When onions are eaten, sulfur compounds can irritate the lining of a bird’s mouth, esophagus, or crop, creating ulcers and inducing red blood cell rupture, leading to anemia.

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Allicin, another chemical found in garlic, can induce anemia and weakness in birds. Dogs, cats, guinea pigs, monkeys, and other animals have all proved that the sulfoxides present in onions, whether raw or cooked, are toxic to them.

A modest quantity of onion is enough to produce poisoning in these species. When onions are eaten, sulfur compounds can irritate the lining of a bird’s mouth, esophagus, or crop, creating ulcers and inducing red blood cell rupture, leading to anemia.

Allicin, another chemical found in garlic, can induce anemia and weakness in birds.

Do Onions Affect The Digestive System Of Birds?

If your bird ate the entire onion, you should turn off your computer and go to the nearest veterinarian right away. The danger of a bird eating onions, like other poisons, is proportional to the size of the bird and the amount of hazardous material consumed.

If your parrot or any pet bird has just taken a little bit, you can decide whether or not to take him to the vet.

Onions only disturb the digestive system and damage a bird’s ability to defecate regularly in minimal amounts. While this is regrettable, it will not result in the death of your parrot. However, parrot owners should be aware of onions’ threats to their birds.

If you’re unsure whether or not to take your pet to the vet, it’s generally best to err on the side of caution and go ahead and do so.

Final Thoughts

To summarize, birds cannot consume any form of onion prepared in any manner. This diet includes sulfur, which irritates the bird’s digestive tract. An ulcer in the bird’s digestive system is one of this inflammation’s side consequences.

In addition, onions might cause the red blood cells of the bird to rupture. If your bird consumes an onion, you should take it to the veterinarian right away. Voting and diarrhea are two signs that your bird has consumed an onion.


can birds eat watermelon?

Birds can eat watermelon. Thus the answer is yes. Birds must consume a diverse diet. Grass, insects, worms, and berries are common foods for birds. These bird food mainstays are familiar to most people who keep birds as pets or feed them in their backyards or gardens. 

can birds eat cabbage?

Cabbage should avoid because it includes oxalic acid, a naturally occurring chemical that prevents birds from absorbing calcium effectively. To boost your bird’s capacity to utilize calcium, offer her calcium-rich meals at various times from the leafy greens.

Can birds eat olives?

Parrots are unable to consume olives. Thus the answer is no. Olives may be considered a nutritious diet, but they are not for parrots. It may be very tempting to feed your parrot a small amount of your savory food, but it’s best to be cautious and keep your savory snack to yourself!

can birds eat mashed potatoes?

Birds can eat baked potatoes (cold and opened up), roast, and even mashed potatoes with extra fundamental fats. Birds seldom eat chips.

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Hi, I am Gulshan, a pet blogger, and author. I've been working with the local pet groups for the past five years. I have been fascinated by our pets and am here to share that wonder with you.