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Home > Guinea Pigs > Can Guinea Pigs Eat Radicchio? Vet-Reviewed Facts & Tips

Can Guinea Pigs Eat Radicchio? Vet-Reviewed Facts & Tips

Can Guinea Pigs Eat Radicchio

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Dr. Lorna Whittemore Photo

Reviewed & Fact-Checked By

Dr. Lorna Whittemore

Veterinarian, MRCVS

The information is current and up-to-date in accordance with the latest veterinarian research.

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Those gentle and charming fluffy critters, guinea pigs, are also tiny gluttons. They love to munch on multiple mini meals throughout the day and are thrilled when you share your favorite snack with them. However, although guinea pigs need a varied diet that goes beyond their staple hay, certain vegetables aren’t exactly right for these friendly little rodents.

So, what about radicchio? Is this dark reddish-purple leafy green safe to feed to your adorable cavy? The short answer is yes, guinea pigs can eat radicchio, but in moderation.

Here’s the thing about radicchio: While it contains vitamins and minerals that can benefit guinea pigs, it has relatively high oxalate and phosphorus content. A few bites of radicchio once in a while is fine, but it’s best to stick with other options.

Let’s take a closer look at why radicchio isn’t the best crispy treat for your little piggy and what to feed them instead.


Nutritional Benefits of Radicchio

With its vibrant red leaves and slightly bitter taste, radicchio brings more than just visual appeal to your lunchtime salad. This leafy vegetable—not to be confused with red cabbage—is high in fiber, which improves digestive health. Radicchio is also full of essential vitamins, including vitamin C—crucial for guinea pigs because they are unable to synthesize it themselves. This low-calorie vegetable is an excellent source of vitamin K, which is essential for blood clotting, and vitamin A, which contributes to good eyesight and a healthy immune system. Minerals like potassium and manganese also help improve the overall nutritional value of radicchio.

Radicchio packs other vitamins and minerals in small amounts, such as:

  • Vitamin E
  • Calcium
  • Magnesium
  • Zinc
  • Copper
  • Iron
  • Potassium
  • Phosphorus
Red organic radicchio
Image Credit: pilipphoto,Shutterstock

What Vitamins and Minerals Do Guinea Pigs Need to Thrive?

The nutritional benefits of radicchio are certainly great for humans, but what about guinea pigs? Since guinea pigs cannot make their own vitamin C, their diet must contain enough foods rich in this vitamin to meet their needs. Radicchio does contain vitamin C, but not as much as other vegetables like parsley or broccoli.

However, radicchio is also a good source of vitamin A, which helps maintain your little guinea pig’s vision, reproduction, and growth. Vitamin K is essential for blood clotting and bone metabolism, though it’s rare to find guinea pigs with vitamin K deficiencies, especially if they eat dark leafy greens.

Guinea pigs need calcium (Ca) and phosphorus (P), ideally in a ratio of around 1.3:1 to 1.6:1 (Ca:P) for proper absorption of both minerals (too much dietary calcium can lead to calcium oxalate stones, too much phosphorus affects the absorption of calcium). The calcium-to-phosphorus ratio of radicchio is 1:2, meaning there’s twice as much phosphorus as calcium in one serving. The problem here is that guinea pigs that consume high-phosphorus diets grow more slowly and their lifespan may be shortened due to calcium phosphate deposits in their soft tissues.

guinea pig in a cage
Image Credit: ZIRIUS STUDIO, Shutterstock

Is Radicchio High in Oxalates?

Oxalates are natural compounds found in plant matter. Consuming too many can lead to the formation of bladder stones in people and animal species susceptible to developing this painful condition—such as guinea pigs. Thus, reducing foods high in oxalates, such as spinach, beets, or raspberries, may benefit guinea pigs that are prone to calcium oxalate stones.

Unfortunately, we couldn’t find a scientific source that lists the oxalate content of radicchio. However it is usually listed as a moderate to low oxalate food online.

Moderation Is Key

So, while radicchio does offer interesting nutritional benefits, you should still exercise moderation when incorporating it into your guinea pig’s diet. Its high phosphorus and oxalate content are the two main concerns with this leafy vegetable, but it’s also possible that your guinea pig just won’t like it.

The slightly bitter taste of radicchio may not be universally appreciated by finicky piggies, especially those that have developed a preference for sweeter vegetables.

Either way, start by offering tiny pieces of radicchio alongside other veggies to gauge your pet’s reaction. Watch for any signs of digestive upset or discomfort, as guinea pigs may react differently to new foods. If your cavy shows no negative effects, you can gradually increase the amount of radicchio offered, but still stick to only a few bites every now and then.

Slicd radicchio
Image Credit: New Africa,Shutterstock

How to Serve Radicchio to Your Guinea Pig

If you decide to go ahead and offer radicchio to your guinea pig (as a special snack!), be sure to keep it safe:

  • First, wash the radicchio leaves thoroughly to remove any dirt, pesticides, or contaminants that may be present.
  • Next, remove any tough or wilted parts of the leaves, as they can be difficult for your guinea pig to chew and digest.
  • Cut the radicchio into small, bite-sized pieces to make it easier for your pet to eat.


The 6 Tips for a Healthy and Happy Guinea Pig

Here are a few tips to ensure that your guinea pig’s diet is optimal:

1. Hay is non-negotiable

Guinea pigs need an unlimited supply of high-quality grass hay like timothy hay. This provides them with essential fiber, aids digestion, and helps maintain healthy teeth. Hay should form the majority of their diet, around 80%.

2. Variety is essential

Offer a wide range of vegetables to ensure that your guinea pig gets all the nutrients they need. Include leafy greens like romaine lettuce and parsley and other crunchy options like peppers, cucumbers, and carrots.

3. Watch out for fruit and other treats

Although fruits can be yummy treats, they should be given sparingly (about 5% of their total diet) due to their high sugar content. Apples or berries are acceptable and delicious options, just remove the seeds.

guinea pig raspberry
Image Credit: Eva Zuy, Shutterstock

4. Provide portion control

Guinea pigs are small but can overeat, which can lead to obesity and other health issues. Make sure portion sizes are appropriate, and regularly monitor the weight of your cavy.

5. Seek your veterinarian for advice

As always, if you have any concerns about your guinea pig’s diet or nutritional needs, consult a knowledgeable veterinarian who can provide advice specific to your adorable little rodent’s needs.

6. Pick the right dish

Serve your guinea pig’s food in a ceramic bowl instead of a plastic one. Ceramic is sturdy and chew resistant, and the bowls are hard to tip over. They are also durable and should not need to be replaced unless damaged.

Guinea Pig Eating Cucumber and Carrots
Image By: andichbe, Pixabay



Radicchio can be an interesting addition to your guinea pig’s diet, providing not only a dash of color but also valuable nutrients. Its fiber content aids digestion, while the vitamins and minerals contribute to overall health. However, radicchio contains a large amount of phosphorus and moderate oxalates, which can cause growth problems and painful bladder stones, respectively, in certain individuals. Its slightly bitter taste can also put off some guinea pigs. However, if your little cavy seems to enjoy the taste of this leafy green, you can offer it occasionally. Just don’t make it a daily habit.

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Featured Image Credit: Elena Rostunova,Shutterstock

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