Can Guinea Pigs Eat Grapefruit? (Find Out Now)

As an Amazon Associate I earn from qualifying purchases from and other affiliate links, at no extra cost to you. Wanna read something more boring than watching paint dry? Click HERE for a peek at my disclosure.

So, it’s snack time for your guinea pigs. And there’s a grapefruit in the fruit bowl. Do you feed it to your little friend or should you steer clear?

Yes, guinea pigs can eat grapefruit. Grapefruit makes a perfectly safe snack for guinea pigs, because of the high Vitamin C and antioxidant content. Just be sure to limit the grapefruit you give to your guinea pig to one or two small servings per week because they’re high in acid and could cause health issues.

a picture of a guinea pig wondering if he can eat grapefruit

But, picking the right type of grapefruit treat and figuring out the best way to feed them to your piggies (or any other type of fruit) is just the beginning.

After all you’re not trying to hurt your fur babies by feeding them something the wrong way, right?

Of course not!

You’re just trying to make sure their diet is complete and balanced.

So, in this article we’ll explore what types of grapefruits are best to feed your piggies today, what nutrients grapefruits offer guinea pigs, and how best to feed them these nutritious fruits.

So, let’s get started.

But first, let’s set some context…

What Are Grapefruits? Are They Called Anything Else?

Grapefruits are a citrus fruit. They have a sour, bitter-sweet taste.

They aren’t as bitter as pomelos or lemons, but they’re also not as sweet as oranges or tangerines. The insides of the fruit could have different colors, including pale yellow or dark pink. Compared to other citrus fruits, grapefruits are pretty big.

Planning Your Piggie's

Meals Just Got A LOT Easier!

Our Wheekly Meal planner is designed to make it simple and fun for you

to create balanced and healthy

meals for your furry friends -

and they'll love you for it!


Grapefruits are a type of citrus fruit that was created when an orange and a pomelo were combined. They get their name from the way they grow, in clusters like grapes. Hence the name “grape” fruit.

Grapefruits are a citrus fruit that is very rich in Vitamin C. Plus, it has water, dietary fiber, Vitamin A, Vitamin C, calcium, potassium, thiamine and other nutrients.

Grapefruits had been known as early as the 17th century when they were brought into Europe and America from Asia. Then it was referred to as pomelo or forbidden fruit (don’t ask me why).

It later became a popular fruit in America (and eventually a tasty snack for your fur babies).

Health Benefits Of Eating Grapefruits For Guinea Pigs

can guinea pigs eat grapefruit tips

Not only is grapefruit safe for guinea pigs to eat, it is also a very nutritious fruit that offers tons of health benefits.

Let’s take a look at a few of them below:

1. Supports Heart Health 

Grapefruits and other citrus fruits contain nutrients that are good for your heart. These nutrients include Vitamin C, potassium, and dietary fiber (cuz we know our piggies need to stay regular).

Eating grapefruits can help reduce the risk of strokes, heart failures, cholesterol levels, and high blood pressure problems (and with piggies, you need every advantage you can get to keep them healthy and happy).

Having enough potassium can help fight high blood pressure. Eating fiber can help fight cholesterol and high blood pressure, too.

Moreover, it has antioxidants like Vitamin C that improve bloodstream functions and reduce platelet aggregation.

You might be thinking: What on earth is that?

But, it’s just a fancy way of saying grapefruits can help your piggies’ blood flow more easily and prevent bad cholesterol from clogging their arteries.

This, in turn, will keep them healthier for longer (and you from having to deal with a heart attack).

So, grapefruits not only help keep your cavies’ hearts healthy, but can also prevent health problems that could potentially lead to death.

2. Helps With Hydration 

Grapefruits are a great source of water. In fact, grapefruits have about 91.6 grams of water per 100grams of grapefruit. That’s more than enough to quench your fur babies’ thirst.

Plus, the added nutrients and fiber in grapefruit will help keep them hydrated and healthy from the inside out.

Don’t get me wrong. You should always give your little friends fresh, clean water.

But, many time piggies get their hydration from the fruit and veggies that they eat, so it helps to know grapefruits are a great source.

3. Boosts Immune System

One of the main factors determining your piggy’s survival is its ability to fight off diseases. Grapefruits boost your cavies’ immunity system so that they would not be easily affected by the disease.


Grapefruits are a good source of Vitamin C. This vitamin is important for your health because it helps fight off many diseases.

It also uses phagocytes to fight bacteria and other bad microbes in your piggie’s body. Phagocytes are the white blood cells that fight off infections, viruses and disease (I’m lookin’ at you upper respiratory infections).

Vitamin C has been shown to help prevent or reduce severity of health problems such as cancer, heart diseases, eye diseases like cataracts, and many more.

So, when your little friends have a little grapefruit in their diet, they’re not only getting a delicious snack, but they’re also boosting their immune system and helping to prevent disease.

4. Protects Against Scurvy

Vitamin C deficiency is one of the biggest problems guinea pigs can have. This can cause scurvy. Scurvy is a horrible disease that can lead to weakness, bleeding gums, and eventually your little friends’ death (if left untreated).

We all know that grapefruits are a great source of Vitamin C.

The number one way to prevent scurvy is by feeding your guinea pig lots of Vitamin C rich foods like grapefruits (and other fruits and vegetables).

Unfortunately, cavies are more likely to get scurvy than other animals. This is because they can’t produce vitamin C on their own.

They need to eat a lot of food with vitamin C in it to stay healthy. One good place to get Vitamin C is from grapefruit. A 100-gram serving of grapefruit has 37 mg of Vitamin C (and that’s a lot).

So, if you’re looking for a way to help boost your fur babies’ health and prevent scurvy, grapefruit is the perfect food.

Are Grapefruits Bad For Guinea Pigs? 

a decision tree to help people figure out if they should feed grapefruit to their guinea pigs
Typically, you want to avoid acidic fruits and veggies if your piggies have mouth sore issues.

When consumed in moderation, grapefruits are safe for guinea pigs. However, if they consume too much grapefruit, it could lead to serious health complications. This could include:

1. Mouth Sores

Grapefruits can have a major side effect on guinea pigs: mouth sores.

This’ll affect their feeding pattern since they won’t be able to eat as much. The citric acid of Vitamin C can irritate your guinea pigs’ gums and mouth. This can cause them to have sore mouths that make eating more difficult and painful for your little friends.

And that’s a serious problem.


Because your little friends need to constantly eat. Their digestive systems need to move constantly to avoid health problems.

If they can’t eat because of mouth sores, it can cause all sorts of health complications like weight loss and even death.

This can be avoided as long as you avoid overfeeding grapefruit to your cavies.

2. Bladder and Kidney Stones

If you feed your piggies too many grapefruits, it can cause problems like bladder stones and kidney stones.

Grapefruits have enough calcium to hurt your cavies from overfeeding. There is a 15 mg calcium content per 100 gram of grapefruits. Although this might not seem like much, it’s important to remember.

It can combine with other calcium sources in the body to form bladder or kidney stones and painful sludges for your cavies.

If your little friend got bladder or kidney stones, they’d need surgery to remove them. This is an expensive and dangerous surgery that can often lead to death.

Again, this can be avoided by feeding your guinea pigs grapefruits in moderation and monitor your piggie’s diet carefully.

3. Digestive System Problems

If grapefruits make up too high of a percentage of your guinea pigs’ diet, it can cause all sorts of digestive problems.

If you give your guinea pigs too many servings of grapefruit, they might get a runny stomach and diarrhea because of the high water content and sugar.

Grapefruits have a 91.6% water concentration and 7.72% sugar.

If you give your cavies too much grapefruit, they might get an upset stomach and chronic poop.

If your guinea pigs have a severe case, they might get bloated. This can lead to death if it’s not treated on time.

But, there’s no need to freak out.

There’s a very easy solution to this.

Just feed grapefruit in moderation and watch your cavies’ diet closely so you can prevent these problems from happening all together.

Nutritional Facts For Grapefruits 

Grapefruits have numerous nutrients in their arsenal. Although its content has a substantial amount of water and vitamin C, you can also see a good amount of protein, fat, carbohydrates, calcium, potassium, and dietary fiber in grapefruits. Here’s a summary of grapefruit nutrients that could benefit your cavies. 

  • Water: 91.6 grams
  • (Ascorbic Acid) Vitamin C: 37 mg
  • Energy: 30 kcal
  • Protein: 0.55 gram
  • Total Sugar Content: 7.72 mg
  • Fat (Lipid): 0.1 gram
  • Ash: 0.29 gram
  • Carbohydrates: 7.5 gram
  • Total dietary fiber: 1.1 gram
  • Manganese: 0.01 mg
  • Phosphorus: 9 mg
  • Calcium: 15 mg
  • Iron: 0.12 mg
  • Potassium: 127 mg
  • Zinc: 0.07 mg 
  • Thiamin: 0.04 mg
  • Riboflavin: 0.02 mg
  • Niacin: 0.2 mg
  • Vitamin B-6: 0.042 mg

Grapefruits also have lots of other nutrients that are good for your cavies. If you want more information about the benefits of grapefruits for guinea pigs, click here.

How Does Grapefruit Compare To Other Citrus Fruits? 

There are many types of citrus fruits. Grapefruits are one type, but oranges, limes, lemons, and tangerines are also citrus fruits. They all have different amounts of nutrients in them.

For example, all these fruits have a lot of Vitamin C. But, pineapples and oranges have more nutrients than the other fruits – yep, even grapefruit. The table below compares the nutrient contents of other citrus fruits.

 CalciumSugarWaterVitamin CDietary Fiber
Grapefruits15 mg7.72 gram 91.6 gram37 mg1.1 gram 
Oranges43 mg8.57 gram86.7 gram 59.1 mg2 gram
Lemon26 mg2.5 gram88.98 gram53 mg2.8 gram
Pineapple21 mg16.3 gram86 gram79 mg2.3 gram
Tangerines37 mg10.6 gram 85.2 gram 26.7 mg1.8 gram 
Limes22 mg1.1 gram 90.5 gram20 mg1.9 gram
Clementines30 mg9 gram87 gram36.1 mg1.3 gram 

Looking at the table above, it’s no secret that grapefruits have the highest water content. The grapefruit’s water concentration per 100 grams is  91.6 grams.

As a bittersweet sour fruit, it still has a decent amount of sugar in it (like 7.72 grams per 100 grams). Only limes (1.1 gram) and lemon (2.5 gram) have less sugar content. 

Plus, the Vitamin C content of grapefruit is closer to average when compared to other citrus fruits. Its vitamin C content is 37 mg. Also, it has the lowest amount of fiber.

If you are looking to give your pigs citrus because of its fiber richness, grapefruits may not be the best option. It has a low 1.1 gram of dietary fiber.

Can Guinea Pigs Eat Grapefruit Every day? 

Guinea pigs shouldn’t eat grapefruit every day because it can lead to numerous health complications. The fruit has a good amount of calcium, water, and sugar which could cause big problems for your guinea pigs.

Feeding them grapefruits every day will eventually lead to overfeeding, and it can result in one of the following complications

  • Bloats
  • Runny and upset stomach
  • Watery stool and cramps
  • Gas
  • Diarrhea
  • Bladder stones and sludges

How Much Grapefruit  Can Guinea Pigs Eat? (Feeding Guidelines)

can guinea pigs eat grapefruit - sarcastic comment from a guinea pig
Spoiler alert: Only feed your fur babies grapefruit sparingly – or just in small amounts infrequently.

Grapefruits are actually really healthy for your guinea pigs. It’s bad to eat too much, while not eating enough will not give your guinea pigs the right nutrients.

Here is a guideline on how to feed grapefruits to your guinea pigs; 

  • Grapefruits should be the occasional treat for your cavies. A small amount once or twice per week is okay. 
  • Feed your piggies a one-inch cube size of grapefruits per meal. 
  • When choosing grapefruits for your guineas, make sure to select those that are free of anything that could harm their system. This includes rotten grapefruits, grapefruits with dirt or pesticides on them, and any other contaminants. Make sure to wash the grapefruits thoroughly before feeding them to your little friends.
  • Remove the peel (if you need to) and seed before feeding them. Grapefruit seeds can choke cavies if they eat them.

Planning Your Piggie's

Meals Just Got A LOT Easier!

Our Wheekly Meal planner is designed to make it simple and fun for you

to create balanced and healthy

meals for your furry friends -

and they'll love you for it!


Do Guinea Pigs Like Grapefruits? 

There are some guinea pigs that like grapefruits. They’re sweeter than lemons and limes, so grapefruits are often the preferred option. However, some guinea pigs will avoid grapefruit because they don’t like its sour taste.

Can Guinea Pigs Eat Grapefruit Rind? 

You don’t have to feed your guinea pigs wedges all the time. Its rind could be a perfect alternative. Grapefruit rinds don’t have any toxins or dangerous components that could harm your cavies.

When feeding your piggies, you should cut the rinds into small pieces. This’ll make it easier for them to eat because the rinds can be tough.

Can Guinea Pigs Eat Grapefruit Flesh? 

Grapefruit flesh is safe for guinea pigs to eat. In fact, it’s 100% safe for guinea pigs. Another alternative to grapefruit wedges and rind is flesh. The grapefruit flesh is safe to feed your guinea pigs. Make sure to get rid of the seeds before feeding.

Can Guinea Pigs Eat Grapefruit Seeds?

Grapefruit seeds are very harmful to the guinea pigs system. They are very hard, so guinea pigs cannot chew them. Instead, it could be stuck in their throat, which could choke the guinea pig.

If you don’t keep an eye on them, then your piggies could choke to death. When you feed them grapefruits, make sure that their seeds are removed completely.

Can Guinea Pigs Eat Grapefruit Peel? 

Guinea pigs can eat grapefruit peels without any problems. Grapefruit peels have a lot of vitamin C, which is good for your piggies.

However, it is worth noting that the outermost cover of grapefruits, the peels, are more prone to having harmful content. You must make sure that the peels don’t have dirt, pesticide, or any other unwanted substances on them.

Buying organic grapefruit is probably the way to go if you want to feed the peels to your fur babies.

Can Guinea Pigs Eat Leaves from a Grapefruit Tree?

Leaves from grapefruit trees are also harmless to guinea pigs. It is a very good alternative source of meals for your piggies. They can feed on them without fear of any health issues (as long as they’re pesticide and dirty free).

Just make sure that you’ve washed them thoroughly before giving them to your guinea pigs.

Can Guinea Pigs Drink Grapefruit Juice?

Guinea pigs shouldn’t drink grapefruit juice. Even though grapefruits and most other citrus fruits are safe for guinea pigs to eat, it’s not a healthy option. The high acidity levels in grapefruit juice can cause severe health problems for your cavies, such as diarrhea and mouth sores.

Grapefruit juice is not good for guinea pigs because it has a lot of sugar and other chemicals like preservatives and additives – unlike fresh grapefruit.

Excess sugar, preservatives, and additives can cause your furry potatoes to get sick. This might lead to an upset stomach and other health problems.

Can Guinea Pigs Eat Frozen Grapefruit? 

Like any other frozen edibles, frozen grapefruits aren’t good for guinea pigs. Guinea pigs shouldn’t eat frozen grapefruit.

To get the best nutrient value for your piggies, make sure you feed them fresh and ripe grapefruits that are not frozen.

However, if frozen food is the last option for your piggies (and I certainly hope that you’re never in that position), make sure it thaws to room temperature before feeding them. 

Can Guinea Pigs Eat Canned Grapefruit?

Canned grapefruits are not good for your guinea pigs. They have too much sugar and preservatives, which can bother your piggie’s stomach. Additionally, canned grapefruits are not fresh fruits. Instead of feeding your guinea pigs with canned food, fresh grapefruit is a better option.

Can Guinea Pigs Eat Pink (Or Red) Grapefruit?

Pink grapefruits and ruby red grapefruits are well-known varieties different from the regular white grapefruit. Guinea pigs can eat pink grapefruits and they can eat ruby red grapefruit.

Unlike white grapefruit, they have a sweeter taste and less sourness. Red grapefruits are the sweetest variety. These grapefruits are famous for their high content of beta carotene and lycopene

Beta carotene is good for the eyes of your guinea pigs. Lycopene is a strong antioxidant that can fight against cancer cells.

White grapefruits contain the nutrients that your cavies need, so they’re a good choice.

But, pink and red grapefruits also have these nutrients, so they are good alternatives if you don’t want to give your cavies white grapefruits – or just want to try something different.

Actually, they’ll love this variety due to their sweeter taste. 

Just make sure you follow the same precautions:

Don’t overfeed grapefruits as they are high in citric acid. Feed them grapefruit no more than once or twice a week. And always make sure the grapefruit is clean and pesticide free before feeding it to your guinea pigs.

Can Baby Guinea Pigs Eat Grapefruit?

Baby guinea pigs can eat grapefruit. Just make sure that you don’t overfeed it to them. Only give them a small portion (about half the size of an adult guinea pig), and only once or twice a week.

You should probably also wait until they’re about two weeks old. Around that time, they get weaned by their moms and are ready to eat more real food.

Baby guinea pigs are more likely to get sick, so make sure the grapefruits are clean and free of any harmful substances or dirt before you give it to them.

Can Pregnant Guinea Pigs Eat Grapefruit?

Grapefruits can be a great treat for pregnant cavies, and they can eat them safely. They need a lot of Vitamin C, and grapefruits are a good way to get it.

You don’t need to worry about your pregnant guinea pigs eating grapefruits. As long as you don’t overfeed them with grapefruits, they’ll be fine. Guinea pigs can have grapefruits once or twice a week like any other cavy.

How To Introduce Grapefruit To Your Guinea Pigs 

The best way to introduce grapefruit to your guinea pigs is to cut it into small pieces. This will make it easier for them to chew and digest grapefruit.

If your guinea pigs are hesitant to try grapefruit at first, you can mix it with their regular food. A little bit of radicchio and spinach with a small grapefruit piece can be a great combination for your little friends.

What Other Kinds Of Citrus Fruits Can Guinea Pigs Eat? 

You should not limit your guinea pigs to grapefruit consumption. They can also take other types of citrus fruits as an alternative.

Other types of citrus fruits, like oranges, pomelos, tangerines, and clementines, have the same core nutrient value as grapefruits – just in different amounts. This section will examine which citrus fruits are best for your little friends.

Can Guinea Pigs Eat Clementines?

Clementines are a great alternative to grapefruit for your guinea pigs. They contain considerably more sugar and are completely seedless. The orange and tangerine hybrid comes with numerous benefits. Here are some of its benefits:

  • They are very rich in vitamin C, strengthening your cavies’ immune system and cells. 
  • They are completely seedless. Unlike other citrus fruit, you so t gave to go through the stress of removing seeds one after the other. 

Can Guinea Pigs Eat Tangerines?

Tangerines are safe for guinea pigs to eat. Like clementines, tangerines are smaller than oranges and grapefruits. However, it has a sweeter taste.

It’s a good snack alternative to grapefruits for your guinea pigs. Its refreshing taste, delicious nature, and strong aroma make tangerines an absolute treat for guineas. Additionally, it comes with countless health benefits. They include 

  • Compared to grapefruits, they are sweeter. So, tangerines are much more loved by guinea pigs. 
  • Like grapefruits, tangerines also help with hydration. Moreover, it improves heart health and boosts the human immune system.

Can Guinea Pigs Eat Limes?

Unlike many of its citrus brothers, limes provide more harm than good. As a result, it’s not as safe for guinea pigs as grapefruits, oranges, and tangerines are.

Limes have more acid than other fruits. This could cause your piggies to get mouth sores, an upset stomach, or problems digesting the fruit. If you have to feed your piggies limes, you should only do it every once in a while.

But, limes aren’t all bad. Some of the perks include: 

  • Unlike grapefruits and tangerines, its sugar content is low. Therefore, your guinea pigs cannot have any sugar-related complications from consuming limes. 
  • Its water, vitamin C, and dietary fiber content have many health benefits for your piggies. 

Can Guinea Pigs Eat Lemons?

Guinea pigs shouldn’t eat lemons. Lemons are closer to limes than oranges or tangerines. They also have a low sugar content and a high acid concentration, which is harmful to guinea pigs.

For this reason, you should probably give your cavies sweet grapefruits and oranges instead of feeding them lemons. Ulcers, mouth sores, digestive complications, amongst other problems, are potential consequences of lemon intake. However, it comes with some of its benefits. 

  • Vitamin C is high in lemons, making it a perfect cure for scurvy and other cell-related diseases. 

Can Guinea Pigs Eat Oranges?

Oranges ate a popular alternative to grapefruit for cavies. Guinea pigs could eat its fruit, flesh, peel, and skin. They are a good source of antioxidants, fiber, water, and calcium essential in the guinea pigs’ diet. If you cannot find a grapefruit meal for your cavies, oranges are better alternatives. 

Planning Your Piggie's

Meals Just Got A LOT Easier!

Our Wheekly Meal planner is designed to make it simple and fun for you

to create balanced and healthy

meals for your furry friends -

and they'll love you for it!


Final Thoughts

Like many citrus fruits, grapefruits are a good food option for your cavies. However, you need to be careful when feeding them. Make sure that the grapefruit slice is clean and free of dirt or pesticides.

Also, don’t give your guinea pigs any processed grapefruits, including grapefruit juice, canned, or frozen grapefruits.

If you keep the tips and suggestions in this article in mind, grapefruits can be a healthy and safe addition to your guinea pigs’ diet.


Four Paw City. (2020, November 7). Can Guinea Pigs Eat Grapefruit? Four Paw City – All About The Pets We Love!

Grapefruit, RAW: FoodData central. (n.d.). Usda.Gov. Retrieved February 13, 2022, from

National Research Council (US) Subcommittee on Laboratory Animal Nutrition. (1995). Nutrient requirements of the guinea pig. National Academies Press.

Wikipedia contributors. (2022, February 5). Grapefruit. Wikipedia, The Free Encyclopedia.

Similar Posts