Pet Keen is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Home > Guinea Pigs > Can Guinea Pigs Eat Mint? Vet-Approved Nutritional Facts & Info

Can Guinea Pigs Eat Mint? Vet-Approved Nutritional Facts & Info

Can Guinea Pigs Eat_mint

Vet approved

Dr. Luqman Javed Photo

Reviewed & Fact-Checked By

Dr. Luqman Javed

Veterinarian, DVM

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

Learn more »

Mint is a refreshing flavor available across the world and a favorite in everything from tea to ice cream. Mint leaves themselves are packed with flavor! But what about for our guinea pigs, would it be safe for them to partake?

Yes, mint is safe for guinea pigs to eat in moderation – both spearmint and peppermint, in fact!

Both varieties of mint can confer health benefits to your guinea pig when part of a diverse array of greens and veggies. However, there are also a number of factors that mean too much mint in their diet could be harmful.

This article will give you an in-depth look at the health benefits, possible concerns, and practicality of feeding mint to your squeaky little friends!


Mint Nutrition and Fun Facts

Spearmint is what you will most often find in the grocery store, or maybe even growing around your neighborhood. It goes by many names: common mint, garden mint, mackerel mint, and lamb mint. This powerfully odiferous herb is native across Europe and Asia – from Ireland all the way to southern China.

Spearmint has been eaten by humans since at least the 1st century A.D.!

Peppermint is a much newer cross of the less common watermint and spearmint. It was first documented by the Swedish botanist, Carl Linnaeus in 1753. Though indigenous to the Middle East and Europe, this hardy herb is now cultivated across the globe.

Guinea Pig on grass
Image By: Pezibear, Pixabay

Important nutrition information for spearmint, based on 100 g raw:

  • Water: 85.6 grams (g)
  • Protein: 3.29 g
  • Carbohydrates: 8.41 g
  • Fat: 0.73 g
  • Calcium: 199 milligrams (mg)
  • Fiber: 6.8 g
  • Potassium: 458 mg
  • Vitamin C: 13.3 mg

Important nutrition information for peppermint, based on 100 g raw:

  • Water: 78.6 grams (g)
  • Protein: 3.75 g
  • Carbohydrates: 14.9 g
  • Fat: 0.94 g
  • Calcium: 243 milligrams (mg)
  • Fiber: 8 g
  • Potassium: 569 mg
  • Vitamin C: 31.8mg

Health Benefits of Mint for Guinea Pigs

Overall, mint does not have the density of nutrition to be a staple in your guinea pig’s diet. But it does still contain a number of vitamins, minerals, and helpful nutrients.

Vitamin C

Vitamin C is of particular importance to guinea pigs because, like humans, they cannot produce it in their own bodies at all. Peppermint and spearmint have relatively low levels of vitamin C but can provide supplemental support when served in tandem with other vegetables.

Large Guinea Pig
Image Credit: Beeki, Pixabay


The primary nutrient in mint is water, which helps your guinea pig get some hydration when they munch on it.

Can Mint Be Bad for Guinea Pigs?

Mint is completely safe and non-toxic for guinea pigs. However, there are still some considerations that suggest moderation of this herb in their diet.

Bladder Stones

Though an essential nutrient for guinea pigs, too much calcium in their diet can pose a problem. Excess calcium can crystalize and become bladder stones.

The relatively high amounts of calcium in spearmint and peppermint means that these herbs should be a once or twice weekly treat at most, and not the only greens you give your piggy.

Guinea Pig leafy background
Image By: Pezibear, Pixabay


Pesticides can wreak havoc on a delicate herbivore’s digestive system and immune system. So, if you buy spearmint or peppermint fresh from the grocery store, always wash the produce thoroughly.

How to Feed Mint to Your Guinea Pigs

Totally raw! These guys are the OG raw vegans, just as nature made them. In fact, the gastrointestinal system of a guinea pig struggles to digest cooked or seasoned foods.

Before serving spearmint or peppermint to your guinea pig, give it a quick rinse in clean water to remove any dirt or sneaky insects. Et voilà! Bon appétit, guinea pigs!

How Much Mint Should I Feed My Guinea Pigs?

Mint is relatively low in nutritional value for guinea pigs and has the possibility of becoming harmful in large amounts. It is best as a source of variety, or a supplement, and should not be used as a staple for your guinea pig’s diet.

No matter how much they plead, 3-5 leaves a couple of times a week will suffice. And some guinea pigs just aren’t interested in mint at all, perhaps because of the strong scent.

Mint Leaves
Image Credit: wagrati_photo, Pixabay


Final Thoughts

Spearmint and peppermint are a safe herb for your guinea pigs to eat – whether they love it or hate it!

Mint has mild health benefits for guinea pigs. However the relatively low nutritional value, combined with the high levels of calcium, mean that it should only be fed occasionally as part of a well-rounded diet.

Happy chomping!

Our vets

Want to talk to a vet online?

Whether you have concerns about your dog, cat, or other pet, trained vets have the answers!

Our vets