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Rabbits are adorable and popular pets found in many households all around the world. Their fluffy fur and curious nature make them perfect companions. However, as harmless and innocent as they may appear, when it comes to their diet, there are certain precautions that rabbit owners should absolutely consider. Not everything that looks green and tasty is healthy for them. In this article, we delve into some foods that can be harmful or even toxic to rabbits. 

Iceberg Lettuce:  

Many people assume that all types of lettuce are safe for rabbits, but this is a misconception. Specifically, iceberg lettuce contains lactucarium, a substance that can cause diarrhea in rabbits. Instead of iceberg lettuce, rabbit owners should opt for other green leafy vegetables like dandelion or arugula. 

Iceberg lettuce on wooden board
image: Hajnal-Photography –

Beans and Peas:  

Though they are nutrient-rich, both green beans and peas can cause bloating in rabbits, which can be very uncomfortable for the animal. It’s best to exclude them from your rabbit’s diet. 

Nightshade Vegetables:  

This category includes some of our favorite vegetables like potatoes, tomatoes, and eggplants. For rabbits, especially the green parts of these plants can be toxic. It’s advisable to completely avoid them. 

Red tomatoes on vine
image: Kathas_Fotos –

Onions and Garlic: 

They contain sulfur compounds that can damage rabbit’s blood and lead to anemia. This condition can have severe health implications and should be taken seriously. 

Grains and Bread: 

Some rabbit owners believe that bread and grains are fine because they appear in many rabbit feeds. However, when overfed, they can lead to digestive issues and should thus be given in moderation. 

Chocolate and Sweets:   

These are an absolute no-go for rabbits. They contain theobromine, which is toxic to rabbits and can be fatal in large amounts. 

dark chocolate
image: AlexanderStein –


Some animal lovers might think this nutritious fruit is good for their bunnies, but that’s not the case. All parts of the avocado, including the skin and pit, contain persin, a substance toxic to rabbits. 


The leaves of rhubarb can cause kidney issues in rabbits. While the stalk is edible for humans, rabbits should avoid both stalks and leaves. 

Two rabbits eating a carrot
image: Thomas_G –


While this list isn’t exhaustive, it provides an overview of some of the foods rabbits shouldn’t eat. As a rule of thumb: if you’re unsure whether a food is safe for your rabbit, research first or consult a vet before giving it to your pet. A balanced diet, mainly consisting of hay, vegetables, and specialized rabbit feed, will keep your rabbit healthy and happy. 

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