What fruit does guinea pigs eat

And how much? Guinea pigs don't usually overeat, but it's important to provide the proper balance of pellets, hay and fresh vegetables. Like human beings, guinea pigs cannot make their own vitamin C, so they require vitamin C-rich foods in their daily diet.

Commercial food: Choose vitamin C-fortified pellets with no seeds or dried fruit added. Because vitamin C usually degrades rather quickly, it is crucial to also offer your guinea pig vitamin C-rich vegetables and fruit on a daily basis. About 1/8 cup of pellets once a day—supplemented by hay and fresh vegetables as described below—will be enough.

Timothy hay: Provide an unlimited quantity of fresh timothy hay every day. Guinea pigs need continuous access to hay to aid their digestion and limit the growth of their teeth.

Guinea Pig Hay on Amazon.com

Fruit and vegetables: Fresh vegetables can be offered once a day and should be equivalent to about one cup total per guinea pig per day. Leafy greens like romaine lettuce, red and green leaf lettuces, kale, cilantro and parsley should comprise the bulk of your pig’s fresh produce. It’s best to provide variety by feeding different greens each day. Vegetables like red or green pepper and broccoli have high levels of vitamin C in them and are great daily options. Add carrots, zucchini, tomato or sweet potato once or twice a week.

Guinea Pig Pellets on Amazon.com

Fruit works well as an occasional treat that is offered once a day or several times a week. Keep the portion size small since fruit is high in sugar; a small wedge of orange or apple, several blueberries or a thin slice of banana is perfectly adequate. Kiwis, strawberries and citrus have high levels of vitamin C.

Introduce new fruits and veggies gradually to avoid diarrhea. If your guinea pig develops loose stool, reduce the amount of fresh produce for several days, then reintroduce it in smaller portions.

Note: Because guinea pigs are susceptible to developing painful bladder stones, and some bladder stones are comprised of calcium oxalate, reducing or eliminating foods high in oxalates—such as spinach, parsley and strawberries—can provide benefit in guinea pigs who develop calcium oxalate stones. Read a more detailed explanation and consult a veterinarian who specializes in guinea pigs with specific questions about diet.

Time for treats

There are a variety of commercial treats marketed for guinea pigs and other small animals. Loaded with artificial sweeteners such as high fructose corn syrup, fructose or sucrose, they provide little nutritional value and lots of empty calories.

Commercial treats are unnecessary and a waste of money. Your pig will be perfectly happy with high quality pellets and hay and treats of fruits and vegetables. For a special snack, try mixing some rolled oats into your guinea pig’s pellets or stuff a small cardboard tube with fresh hay. 

When purchasing food for a guinea pig, you must remember that guinea pigs are herbivores. They primarily eat hay, but love fruits and veggies too. Their teeth are constantly growing, so they need things to chew on. While some human food is safe for your guinea pig to eat, feeding guinea pigs should involve far more care than just giving them table scraps.

At the most basic level, guinea pigs are herbivores. That means that they just eat fruits and veggies—no dairy, eggs, meat, or insects for these little guys. Fresh hay and fresh leafy vegetables should make up the bulk of your guinea pig’s diet.

Any guinea pig owner needs to keep two important things in mind when choosing food:

  • Vitamin C: Guinea pigs can’t formulate their own Vitamin C, making them vulnerable to scurvy. Guinea pig pellets should include Vitamin C to keep your pet healthy.
  • Constant-Growing Teeth: Guinea pig teeth are always growing. It’s important to give your guinea pig something fibrous to chew on. This is where hay is super important. Hard pellets alone won’t do the trick!

That said, it’s also important not to transition your guinea pig’s diet too quickly. If needed, be sure to go slow while you transition your guinea pig from her original diet in her old home or from the pet store to a healthier diet.

You might also catch your guinea pig eating her own poop, but don't be alarmed! Guinea pigs actually produce two different types of feces. One is soft and nutritious, and the guinea pigs re-ingest this to get more nutrients. Rabbits do the same thing!

The other type of poop is harder and is produced after the food has been digested twice. That’s the poop that you clean up when you clean your guinea pig’s cage!

The Spruce / Kristie Lee

Like most herbivores, guinea pigs are essentially grazers. They munch on hay and veggies all day. That means it’s important to keep fresh hay available constantly.

It’s best to dump out your guinea pig’s food and water every day, clean the bowls, and fill them with fresh food and water.

Most owners will opt to feed their guinea pigs store-bought pellets and hay. Be sure to purchase pellets that are specifically formulated for guinea pigs.

For hay, a mix of timothy, orchard, and oat is best. Some alfalfa hay is acceptable but it contains too much calcium to be the main part of your pet’s diet. Guinea pig hay needs to be stored in a cool, dry place to stay clear of mold or mildew.

Supplement your guinea pig’s hay with a small amount of high-quality pellets. Opt for plain pellets rather than a mix, as this prevents your guinea pig from just picking out the tasty bits and ignoring the healthy ones!

The Spruce / Kristie Lee

Fresh fruits and veggies are great treats and supplements for your guinea pig. Vegetables and fruits are great treats to offer your guinea pig. You can use these as extra-special offerings to help bond with your guinea pig or as treats for training.

Good fresh foods to feed your guinea pig include:

  • Bananas
  • Blueberries
  • Cantaloupe
  • Green peppers
  • Parsley
  • Green and red leaf lettuce
  • Strawberries
  • Tomatoes
  • Watermelon

Offer your guinea pig more vegetables than fruits. She might love fruits, but they’re like candy for guinea pigs! Always be sure to clean up any uneaten fresh foods at the end of the day to avoid mold or rot.

The Spruce / Kristie Lee

Not all fruits and veggies are safe for guinea pigs to eat. Be sure to avoid feeding your guinea pig:

  • Avocados
  • Chives
  • Coconuts
  • Garlic
  • Grapes
  • Onions
  • Raisins

These foods are actually dangerous for many pets. These same foods often pop up on lists of toxic foods for dogs, parrots, and cats.

Always avoid feeding your guinea pig sweet or salty human “junk food,” even if none of the ingredients are toxic. Since guinea pigs can’t eat garlic or onions, much of our cooked food is off-limits as well. It’s generally best to stick to feeding your guinea pig a diet of hay and high-quality pellets, with occasional treats of fresh fruits and veggies.