When you think of rabbits, one of the first foods you associate them with is lettuce. Rabbits are often displayed chomping down on lettuce leaves in children’s picture books and movies.
However, if you’re already an avid rabbit owner, then you may be aware that lettuce should be fed to your bunny with caution.
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Romaine lettuce is fibrous and dark, making it a good, healthy snack for rabbits. However, only when fed in moderation. If you feed your rabbit too much lettuce, it could upset their stomachs and digestive systems.
With this in mind, this article will explore everything you need to know about feeding rabbits Romaine lettuce.
Is Romaine Lettuce Healthy?
Yes, romaine lettuce is a reasonably healthy snack for your furry companion. When fed in small quantities, it contains lots of goodness to keep your rabbit happy and healthy, including some vitamins, calcium, magnesium, potassium, and phosphorus.
It also has vitamin K, folate, and vitamin C. However, even though it is among the tougher leaves, it doesn’t contain much fiber. On the other hand, its water contents are reasonably low, making it better for rabbits.
Most rabbit owners will already know their pets require a mixed bowl full of different vegetables that are around the size of their heads. These treats should be varied regularly; however, Romaine lettuce is a good place to start.
Since Romani lettuce contains high amounts of fiber and low levels of water, it makes it safe for your rabbits, as opposed to other varieties of lettuce.
For instance, Iceberg lettuce is not considered healthy for rabbits. Due to their high water contents, it could make your rabbit unwell and lead to diarrhea. Likewise, it contains lactucarium which can be toxic to rabbits when consumed in high quantities.
What Are The Risks Of Feeding A Rabbit Romaine Lettuce?
Luckily for you, Romaine Lettuce is among the best lettuce to feed your pet rabbits. However, the fact remains that it should only be fed in moderation. Too much and it could give your rabbit bloating, diarrhea, and constipation.
Likewise, if your rabbit fills up on lettuce, then they may not be hungry enough to eat their hay – which should make up 80% of your rabbit’s diet, and is needed to keep their digestive systems running smoothly. Since they have delicate digestive systems, they need hay to push everything through.
Not enough fiber in your rabbit’s digestive system could lead to GI Stasis. In some instances, this can even be fatal. Therefore, if you notice your rabbit has stopped eating or pooping over a long time, you should promptly call your veterinarian.
Therefore, moderation is key!
Can Rabbits Eat Romaine Lettuce Every Day?
Yes, rabbits can eat romaine every day, as long as you combine it with other dark leafy green vegetables, and the total of these vegetables makes up 10% of your rabbits diet. What is most important is that rabbits are fed hay and pellets every day, no matter how much they seem to love Romaine lettuce.
Similar to humans, rabbits will thrive from a balanced, varied diet. So although you can feed your rabbit romaine every day, it is better to rotate the different fruits and vegetables you are feeding your rabbit weekly.
Not only does this remove the risk of overfeeding your pet, but it also ensures that they receive a variety of nutrients.
For instance, different foods contain different vitamins and minerals; therefore, varying these foods will allow your bunny to get the nutrients they need to remain happy and healthy.

Why Won’t My Rabbit Eat Romaine Lettuce?
While this is often unlikely, some rabbits will reject Romaine lettuce. If this happens, you can try giving them lamb’s lettuce, butterhead lettuce, or red leaf lettuce.
The general rule of thumb is the darker the lettuce, the more nutrients it contains. Therefore, always opt for darker lettuce as opposed to lighter ones for optimal vitamins and minerals.
Although, if your rabbit isn’t a lettuce fan, don’t worry! There are plenty of other green vegetables you can try. These include radishes, small quantities of kale (see also ‘Can Rabbits Eat Kale?‘), carrot tops, and pieces of beet.
Rabbits will munch on most greenery from root vegetables (not including potatoes), as well as herbs such as parsley.
How To Prepare Romaine Lettuce?
Before feeding your rabbit Romaine lettuce, you should ensure that it has been washed thoroughly. Likewise, if possible, choose organic lettuce. To be extra safe, you may even consider growing your own to avoid pesticides.
Instead of feeding your pet a whole lettuce leaf, you could try chopping them into smaller pieces, allowing your rabbit to eat them easier. Although, small leaves can be left whole. Just be sure to remember the moderation rule, feeding your rabbit small portions is best.
The best method is to cut up one or two Romaine lettuce leaves and mix them in with other vegetables. If you have a small rabbit, make the portions smaller. Whereas large rabbits can have slightly more.
The general rule of thumb is to never feed your rabbit more than the size of its head, or approximately 10% of its general intake with treats. Its diet should mainly consist of hay and pellets, with some mixed vegetables.
How To Introduce Romaine Lettuce?
Similar to any other foods you are first introducing to your rabbit, start with smaller portions. For the first helping, half a leaf should suffice. This helps prevent any adverse reactions if there are any.
After a few days, if your rabbit seems fine then you can gradually begin introducing small amounts of Romaine lettuce into their meals every few times. Although, make sure to keep a variety of vegetables.
If you begin to notice your rabbit looking uncomfortable or having an upset stomach, then you shouldn’t offer it any more lettuce. Instead, offer them a different type of lettuce, or any other greenery.
Final Thoughts
While Romaine lettuce can contribute to a healthy diet for your rabbit, it’s important to remember that moderation is key. Like all foods, too much can make your pet seriously unwell. Hopefully, this guide helped you understand that rabbits can eat Romaine lettuce.