Can Rabbits Eat Guinea Pig Food?

Categorized as Bunny Diet

Last Updated on December 17, 2021 by Rei Garnet

It’s fine if your rabbit ate small amounts of guinea pig food, but make sure that you don’t make it a habit. Rabbits and guinea pigs have different nutritional needs.

As an example, rabbits can make their own vitamin C while guinea pigs can’t, which is why most guinea pig food is loaded with vitamin C. A rabbit that’s fed large amounts of food that contains vitamin C can lead to kidney damage.

Now that I’ve given you the gist of the article, read on as I explain in more detail why rabbits can’t eat guinea pig food long-term:

Risk of feeding guinea pig food to rabbits.

Because rabbits and guinea pigs have different nutritional needs, feeding your rabbits guinea pig foods has risks if fed long term.

Here are some of the risks associated when you feed your rabbits large amounts of guinea pig food:

Kidney damage

Excess vitamin C in rabbits is shown to be converted to oxalates, which in turn may start the formation of kidney stones. Because rabbits are already making their own vitamin C, feeding high amounts of additional vitamin C like what guinea pig food has, can lead to the formation of kidney stones if fed long term.

Here are the signs that your rabbit might be suffering from kidney stones caused by excess vitamin C:

  • Blood in urine(hematuria)
  • Thick, pasty, cloudy, or beige- to brown-colored urine.
  • Urine staining in the area between the anus and genitals.
  • Straining/pain during urination.


Diarrhea in rabbits is often caused by the wrong diet or when their diet is changed too fast. Feeding your rabbit large amounts of guinea pig food would check those two boxes I mentioned.

FAQ (Frequently Asked Questions)

Should you panic if your rabbit ate a little amount of guinea pig food?

While it’s true that rabbits should not eat guinea pig food, taking a small bite of guinea pig food is not a problem. Rabbit food and guinea pig food are actually quite similar, it’s just that guinea pig food contains an additional vitamin C.

As long as you’re not feeding your rabbit a lot of guinea pig food then you should be fine. Just observe your rabbit for any behavioral changes or any changes in their poop.

What to do if your rabbit ate guinea pig food?

Observe their behavior, poop, and urine for any changes. If you did notice something after your rabbit accidentally ate guinea pig food, call a veterinarian for proper advice.


Guinea pig food should never be fed to rabbits intentionally because rabbits are not designed to consume large amounts of vitamin C, which they already make. If your rabbits ate a little bit of guinea pig food, just observe their poop, urine, and behavior for any changes.

Rabbits’ and guinea pigs’ diets are almost identical. So your rabbit should be fine if they accidentally took a ate some guinea pig food while you’re not looking.

If you did notice some behavioral, urine, and poop changes, call a veterinarian for proper advice.

Image credit – Photo © Derek Harper (cc-by-sa/2.0)

By Rei Garnet

I’ve loved and cared for rabbits since I was 9 years old, and I’m here to share my passion for rabbits. My objective is to help rabbit owners give their rabbits the best life possible.