Can Rabbits Eat Green Onions?

brown rabbit

Quick Answer:- Can Rabbits Eat Green Onions?

In brief, rabbits should not be fed green onions. This type of vegetable belongs to the Allium family, which also includes garlic, leeks, and chives, all of which can be toxic to rabbits. Green onions contain thiosulphate, a compound that rabbits cannot process efficiently. Over time, consuming green onions can lead to blood disorders, digestive issues, and other health problems. Therefore, it’s best to avoid feeding green onions to your rabbit.

Are Green Onions Harmful To Rabbits?

Yes, green onions are indeed harmful to rabbits. While the occasional nibble might not cause immediate harm, regular consumption can lead to serious health issues.

Green onions, and all other plants of the Allium family, contain a compound known as thiosulphate. This substance is toxic to rabbits because they lack the necessary enzymes to break it down effectively. Regular ingestion can lead to a condition known as haemolytic anaemia, in which the red blood cells in the rabbit’s body break down faster than they can be produced. This can result in fatigue, weakness, and in severe cases, death.

In addition to this, green onions can cause gastrointestinal discomfort in rabbits. Their digestive systems are not built to process large amounts of such plants, leading to potential issues like bloating, gas, diarrhoea, or even more severe conditions like gastrointestinal stasis – a life-threatening condition where the rabbit’s digestive system slows down or stops.

Hence, while rabbits might find green onions palatable, they are certainly not a safe or healthy option for your furry friend. It’s always best to stick to rabbit-approved greens, such as kale, romaine lettuce, or parsley, and make sure to introduce any new foods gradually to avoid upsetting their sensitive digestive systems.

gray rabbit on road

Is There Any Risks Of Feeding Green Onions To Rabbits?

While green onions might seem like a harmless snack for your rabbit, there are numerous risks associated with feeding them to your fluffy companion. It’s important to understand these risks to ensure you’re providing the best care and nutrition for your rabbit. Here are ten potential risks to consider:

Haemolytic Anaemia: As mentioned earlier, green onions contain a compound called thiosulphate, which can cause haemolytic anaemia. This condition leads to the breakdown of red blood cells faster than the body can produce them, resulting in symptoms such as fatigue, weakness, and in severe cases, death.

Gastrointestinal Discomfort: Green onions can cause gastrointestinal discomfort, leading to bloating, gas, and diarrhoea.

Gastrointestinal Stasis: Regular ingestion of green onions could potentially result in a life-threatening condition known as gastrointestinal stasis, where the digestive system slows down or even stops.

Toxicity: Green onions, like all members of the Allium family, contain toxic compounds that rabbits cannot process effectively.

Weak Immune System: The nutritional imbalance caused by regularly consuming green onions can lead to a weakened immune system, making your rabbit more susceptible to diseases.

Poor Nutrition: Green onions do not provide the balanced nutrition that rabbits need for their health and well-being.

Oral Discomfort: The strong taste and odour of green onions can cause oral discomfort, leading to loss of appetite.

Behavioural Changes: Due to the discomfort and health issues caused by consuming green onions, rabbits may exhibit changes in behaviour, such as being less active or displaying signs of distress.

Decreased Lifespan: The cumulative effect of these health issues can lead to a decreased lifespan in rabbits.

Veterinary Costs: Lastly, the health issues caused by feeding green onions to your rabbit could result in costly veterinary bills and emergency treatments.

In summary, the risks of feeding green onions to rabbits are substantial and outweigh any perceived benefits. As caretakers of our furry friends, it’s our responsibility to ensure that we provide them with a diet that is not only palatable but also nutritionally balanced and safe. Therefore, green onions should be avoided in a rabbit’s diet. Always consult with a vet or a rabbit expert if you’re unsure about introducing any new foods into your rabbit’s diet.

Are Green Onions A Good Source Of Nutrition For Rabbits?

Despite being packed with several nutrients, green onions are not considered a suitable food source for rabbits due to their toxicity. However, for the sake of understanding the nutritional content of green onions, here’s a breakdown:

Vitamin CEssential for overall health and immune function, though rabbits naturally produce their own vitamin C.
Vitamin KPlays a crucial role in blood clotting, but excessive consumption can be harmful.
FolateImportant for DNA synthesis and cell division. Rabbits, however, get enough of this from their primary diet of hay and leafy greens.
Dietary FibreEssential for a healthy digestive system, but rabbits should get the majority of their fibre from hay.
ManganeseRequired for bone development and metabolic function. It’s usually present in adequate amounts in a balanced rabbit diet.
CalciumImportant for bone health, but too much calcium can lead to urinary issues in rabbits.

While this table outlines the key nutrients present in green onions, it’s important to remember that the dangers associated with feeding green onions to rabbits far outweigh the potential benefits of these nutrients. Rabbits can obtain all the nutrition they need from a balanced diet consisting of high-quality hay, leafy greens, and a small portion of specially-formulated rabbit pellets. Always avoid food items that pose potential health risks, such as green onions, to keep your rabbit healthy and happy.

a white rabbit sitting in the middle of a lush green field

Do Rabbits Like Green Onions?

Rabbits have a natural curiosity towards exploring different foods, and green onions might initially appear appealing to them because of their distinct smell and flavour. However, this doesn’t mean that green onions are suitable or healthy for your rabbit.

Their preference for certain foods does not always align with what is best for their health. Just as we humans might be drawn to foods that aren’t necessarily good for us, rabbits may also show interest in foods that could harm them if eaten. This is why it’s crucial for us, as responsible pet owners, to ensure that our rabbits’ diets are safe, balanced, and nutritious.

So, while a rabbit might show interest in green onions if presented with them, it’s our duty to avoid feeding them these potentially harmful vegetables. It’s always better to stick to foods that we know are safe for rabbits, such as hay, certain leafy greens, and small amounts of rabbit-friendly fruits and vegetables.

Can Rabbits Eat The Skins Of Green Onions?

No, rabbits should not eat any part of the green onion, including the skins. While the skins are typically not as potent as the actual onion bulb, they still belong to the Allium family and contain the same harmful compounds.

Feeding your rabbit the skins of green onions can expose them to thiosulphate, a substance that rabbits cannot effectively process, potentially leading to haemolytic anaemia, gastrointestinal discomfort, and other health issues.

As a responsible pet owner, it’s essential to ensure your rabbit’s diet is safe and healthy. Always stick to appropriate rabbit-friendly foods such as hay, a variety of leafy greens, and a small number of rabbit-specific pellets. If you’re unsure about the suitability of a particular food item for your rabbit, it’s always best to consult with a vet or a rabbit expert.

What Should Their Main Diet Consist Of?

A rabbit’s diet plays a vital role in their overall health and wellbeing. Here are the key components that should make up the bulk of a rabbit’s diet:

Hay: This should make up around 70-80% of your rabbit’s diet. Hay is crucial for a rabbit’s digestive health as it provides the necessary fibre. This helps to keep their gut moving and prevents issues like gastrointestinal stasis. Hay also aids in dental health by naturally grinding down a rabbit’s constantly growing teeth. The best types of hay for adult rabbits include Timothy, meadow, and oat hay.

Leafy Greens: A variety of fresh leafy greens should form a considerable part of your rabbit’s diet. These provide essential vitamins and minerals. Safe options include romaine lettuce, bok choy, kale, parsley, and basil. However, avoid giving them too much of spinach and kale, as these are high in calcium and could cause urinary problems.

Pellets: A small amount of high-quality rabbit pellets can be offered daily. These pellets should be high in fibre and free from any added sugars or seeds. It’s best to opt for pellets that are mainly made from hay.

Water: Fresh, clean water should always be available to your rabbit.

Treats: In moderation, you can give your rabbit treats such as certain fruits (like apples or strawberries) and non-leafy vegetables (like carrots or bell peppers). You might also wonder, can rabbits eat pumpkin? Pumpkin can indeed serve as a delightful occasional treat for your rabbit, just be mindful to offer it in moderation due to its high sugar content.

In contrast, green onions, along with all other types of onions, should be completely avoided due to their toxicity to rabbits. It’s important to stick to safe, rabbit-friendly foods and to consult a vet if you have any doubts about a particular food item. This will ensure your rabbit maintains a balanced diet and stays healthy and happy.

brown rabbit in the garden

Where Can You Buy Rabbits Food?

There are several reliable online retailers in the UK where you can purchase high-quality rabbit food:

  • Pets at Home offers a broad selection of rabbit supplies, including various types of rabbit food, like hay and pellets.
  • Small Pet Select is a trusted source for high-quality rabbit food, particularly when it comes to rabbit-specific pellets.
  • Finally, The Pet Express provides a wide range of rabbit food options, including a variety of brands and types to suit your rabbit’s dietary needs.

When selecting food for your rabbit, always ensure you’re providing a balanced diet that consists primarily of high-quality hay, a variety of leafy greens, a small amount of rabbit-specific pellets, and occasional safe treats. It’s important to remember to avoid potentially harmful foods such as green onions to maintain your rabbit’s overall health and wellbeing.

What Food Should You Avoid Giving Rabbits?

Rabbits have a sensitive digestive system, and as a result, not all foods are safe for them to consume. In the table below, we’ve compiled a list of foods that you should avoid giving your rabbits, along with explanations as to why they are harmful:

Green OnionsContains thiosulphate, which is toxic to rabbits and can lead to haemolytic anaemia and gastrointestinal issues.
ChocolateToxic to rabbits and can lead to serious health issues, including cardiac arrest.
Iceberg LettuceContains mostly water and can cause diarrhoea in rabbits. It also has a low nutritional value.
AvocadoHigh in fat and contains a toxin called persin, which can be harmful to rabbits.
Bread, Pasta, Cookies, or CerealThese are too high in carbohydrates and sugar, which can upset a rabbit’s digestive system.
Nuts and SeedsThese are high in fat and can lead to obesity and other health problems.
Onions and GarlicBoth belong to the Allium family and contain compounds that can cause haemolytic anaemia in rabbits.
RhubarbBoth the leaves and the stalks are toxic to rabbits.
AlcoholExtremely dangerous for rabbits and can lead to death.
Caffeine (coffee, tea)Can cause a rapid heart rate, restlessness, and cardiac arrest in rabbits.

After reviewing this table, it becomes clear that it’s crucial to be mindful of what we feed our rabbits. The wrong foods can lead to a multitude of health issues, some of which can be fatal. As responsible pet owners, we should always ensure we’re providing a diet that is safe, balanced, and nutritionally appropriate. This will typically consist of high-quality hay, a variety of leafy greens, a small amount of rabbit-specific pellets, and occasional safe treats. Always consult with a vet if you’re unsure about a particular food item. Your rabbit’s health and wellbeing are worth the extra effort.


Feeding your rabbit a balanced and safe diet is a fundamental aspect of ensuring their health and wellbeing. While green onions might be nutritionally rich for humans, they are toxic and potentially harmful to rabbits, causing serious health complications such as haemolytic anaemia and gastrointestinal discomfort. Therefore, they should be strictly avoided.

Instead, opt for a diet consisting primarily of high-quality hay, supplemented with a variety of leafy greens, a small number of rabbit-specific pellets, and occasional safe treats. Such a diet will help keep your rabbit healthy, lively, and content. Always be mindful of the potential risks associated with introducing new foods into your rabbit’s diet and consult with a vet if in doubt.

Just like us, every rabbit is unique, and their dietary needs may vary based on their age, size, and overall health. Always be aware of your rabbit’s individual needs to provide them with the best care possible. After all, our furry little friends depend on us to make the best choices for them.


RSPCA. (no date). Rabbit diet. Available at: (Accessed: 31 May 2023)

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top