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What Is the Best Weight Gain Food for Rabbits?

Best weight gain rabbit food featured image.

If you’re concerned about your rabbit’s weight, the first port of call is to consult your vet. They can advise whether your rabbit’s diet needs to be changed and whether additional foods need to be introduced to promote weight increase.

More rabbits are overweight than underweight, so be sure to consult a vet before putting your rabbit on a weight-gaining food. If your rabbit does need to gain weight, you’ll need to understand the foods your rabbit can eat. In this article, we bring you a guide to weight-gaining foods for rabbits.

Helping Your Rabbit Gain Weight

It’s difficult to know what exactly constitutes a good weight-gaining rabbit food. After all as owners rather than vets, it’s not an area you would have received any training in. However, this is why we’ve decided to write this article in an effort to save you time trawling through the market looking for the best-rated rabbit foods for weight gain.

As an owner of any pet, seeing your rabbit underweight or refusing to eat can be heartbreaking. This section of the article explores how you can help you rabbit gain weight, and get itself to a healthy size. If your rabbit is not eating, please take it to a vet for an assessment as this can be quickly life-threatening. If your rabbit is at an unhealthy weight, it’s also at risk of becoming seriously ill. Underweight rabbits are less likely to be able to fend off illnesses, so it’s best to ensure your rabbit stays within a healthy weight range. Once your vet has given you the go-ahead, the most effective way of increasing your rabbit’s weight is by adjusting its diet. In order to do this effectively, you’ll need to find the best weight gain food for your rabbit.

Fluffy Rabbit, Credit: PeakPx

Rabbit Weight Gain Food Tips

We’ve listed some tips below to help you find the reason why your rabbit is underweight, and help you get your bunny back to the healthy weight it deserves.

Hay and Grass Access

Sometimes the most obvious place to start can be the best. Hay and/or grass is essential for your rabbit to graze on throughout the day. Due to the fact that rabbits are grazing animals it’s important they have a constant supply of this kind of food. Hay or grass should make up 85-90% of your rabbit’s diet, as this is what their guts have evolved to eat.

rabbit hay
Credit: DanielWanke, Pixabay

Check Eating Pattern

Rabbits are grazing animals that should have a constant supply to food throughout the day. If you’re concerned about your rabbit’s weight, it’s important to get to the bottom of it and get a rabbit-savvy vet to check their teeth and guts. But before you go, just check your rabbit’s eating pattern.

Like many of us, it’s likely you have to work during the day. This makes it difficult to keep a constant eye on your rabbit. However, you can keep on eye on the levels of hay and grass that it’s currently eating and take notes of how many faeces your rabbit is producing. These are things your vet is going to want to know.

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Implement Treats

If your rabbit looks like they’re eating well, but are still failing to gain weight then try giving some treats. Treats don’t have to be expensive ones bought from the pet store either. You can try using chopped up vegetables or fruit such as carrots as a treat. Your rabbit will appreciate these, but try not to go overboard due to the high sugar content in fruit and veg. This is especially true for rabbits that don’t eat enough of their hay.

Bunny Carrot Eat, Credit Needpix
Bunny Carrot Eat, Credit Needpix

Exercise Routines

Not strictly a food tip, but examine your rabbits exercise routine. Of course, exercising burns calories but if your rabbit is getting no exercise it could indicate larger problems. For example, if your rabbit has a health condition that impacts its mobility it may be depressed. Lack of exercise will stop it building up an appetite and quickly stops guts from working correctly.

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Change Food

Weight gain food is something you could try implementing if you’ve exhausted the above options. Any of the rabbit food for weight gain mentioned in this article would be great, however, we’ve also done a guide on healthy rabbit food which you can read here.

A Rabbit Eating, Credit: Wikimedia Commons

Getting Your Rabbit Medically Examined

If you’ve tried the options above and still aren’t getting anywhere, there may be a greater cause for concern. It’s important to get your rabbit checked out to ensure that there’s not another reason for your rabbit’s unhealthy weight.

As above, your vet is likely to want to know your rabbit’s eating habits. It’s best you know these first, to help your vet in the decision-making process.

Remember, if you feel that your rabbit needs urgent care or attention, always consult your vet in the first instance.

Never take matters into your own hands if your rabbit’s showing obvious signs of ill health. Always consult a vet if you have immediate concerns.

What Makes the Best Weight Gain Food for Rabbits?

Great weight gain rabbit foods need to be nutritionally balanced, containing both protein and fibre, which are essential nutrients for helping rabbits gain weight. We recommend using something grown and blended for assisting rabbit weight gain. The products mentioned in this article are great examples of weight-gain foods for rabbits and should improve their weight and muscle mass.


Rabbits need to maintain a healthy weight in order to help them prevent health risks. Being in a healthy state also allows them to fight off illness and infections when they do occur. Older rabbits especially are prone to losing weight. Remember, the most effective way of helping your rabbit achieving a healthy weight is dietary adjustment. This combined with the best weight gain food is likely to be a win. Don’t forget that most rabbits are overweight, not underweight, so we recommend checking with a vet to confirm that your pet is definitely underweight.

As rabbit owners, you may find it difficult finding the best rabbit food for weight gain. After all, this could be the first time weight gain has been a concern for your rabbit. This is why we decided to write the article, to save you some leg work. Hopefully this has paid off and you’ve chosen one of the best weight gain rabbit foods on the market to get your bun on its way to healthy weight.

Remember, if you have any immediate concerns regarding your bunny’s weight, consult a vet. You could have the best weight gain rabbit food for underweight rabbits but if your rabbit is sick, it won’t help and could even make things wose. Hopefully this post has given you some great tips for getting your rabbit fighting fit, and we wish you all the best in your rabbits recovery.


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