Can Guinea Pigs Eat Bananas?
Benefits, Risks & Serving Size

Can Guinea Pigs Eat Bananas

February 22, 2022

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It’s a question many pet owners ask themselves. You may be looking for healthy, natural alternatives to shop-bought food for your fur baby, and there are lots of tasty treats that come to mind. But is it safe to feed a guinea pig the same things that we eat?

That depends – sometimes it’s a yes, other times it’s not a good idea. Guinea pigs are herbivores, so they can eat many veggies and fruits that we love to eat. But they are a different species, and their digestive system works differently from our own.

Can Guinea Pigs Eat Bananas?

Yes, guinea pigs can eat banana. The peel is also safe to feed if washed or it’s organic. Actually, the skin is healthier than the banana’s flesh because it contains less sugar and more fiber. However, bananas are high in sugar, and you should follow our vet-approved feeding instructions to prevent obesity and diabetes.

”A small amount of banana makes a tasty and nutritious treat for your guinea pig, and your guinea pig can be fed both the banana itself and the peel.”, says Doctor of Veterinary Medicine Leonie McKinlay.

Chances are your cute little guinea pig is going to love this tasty, nutritious fruit, and will gobble up as much as you give him. But don’t give too much too often. Bananas are good for guinea pigs, but only in small quantities.

You probably already know that the biggest part of your guinea pig’s diet should consist of hay. But while hay is very important for your pet’s digestive system, it doesn’t provide all the vitamins and minerals that your pet needs.

Bananas are a great source of vitamin B6, vitamin C, and Manganese, and they also contain a fair amount of fiber. They are a healthy, natural way to supplement your guinea pig’s diet, along with other nutritious fruits and some veggies.

But bananas are quite high in sugar, and too much is never a good idea for guinea pigs. So much as they have some nutritional value, it’s important not to feed your pet too much.

Hay should make up about 80% of your guinea pigs’ diet. Because it’s such an important part of their nutrition, make sure you’re providing your pet the best guinea pig hay.

Health Benefits: Are Bananas Good for Guinea Pigs?

When feeding bananas to your guinea pig, you’ll naturally think of giving them the ripe, peeled fruit. But banana skins are also very nutritious and have more fiber and less sugar than the fruit itself.

As long as you wash the skin thoroughly to remove any dirt and pesticides, giving your pet banana skins is completely safe. Many guinea pig owners have said that their pets actually like the skins more than the fruit itself!

Whichever you choose to give, fruit or skin, it is a healthy addition to your pet’s diet, just as long as you don’t overdo it.


Rich In Vitamin B6

Vitamin B6 is an essential nutrient in your guinea pig’s diet, yet your guinea pig cannot produce it on its own. The only way for your pet to get it is through the food it eats.

This vitamin has a lot of functions in the body. It supports the metabolism of carbs, protein, and fats. It also has a role in the creation of red blood cells and the production of hemoglobin. A deficiency of vitamin B6 may lead to anemia and other health conditions.

Good Source Of Vitamin C

Did you know that guinea pigs cannot manufacture or store vitamin C within their bodies? The only way for them to get enough of this essential vitamin is to eat enough of it in their diet, and bananas are an excellent source.

Vitamin C is a powerful antioxidant and supports the immune system. A deficiency can lead to a painful condition known as scurvy, so your pet must get enough vitamin C in their diet.

Contains Essential Manganese

Manganese is a trace mineral, so your guinea pig will need it in very small amounts. But it is still very important and plays many roles in the body. It helps in the metabolism of amino acids and is vital in blood clotting, bone formation, and reducing inflammation.

Good Source Of Fiber

Guinea pigs need lots of fiber in their diet to remain healthy. For one, fiber is very helpful in keeping their ever-growing teeth trimmed down to a comfortable length and size.

Secondly, fiber helps keep your guinea pig’s digestive system healthy. It helps maintain the perfect balance of gut flora that breaks down food as it is churned in your pet’s tummy.

Fiber also helps slow down the rate at which sugar is absorbed into the bloodstream, regulating blood sugar.

Bananas are high in sugar, but they also contain a fair amount of fiber. This is better than some other fruits that lack the fiber to balance the sugar out. Banana skins are even better as they have more fiber and less sugar than the fruit itself.

Contains Many Of The Essential Minerals

Bananas provide almost every essential mineral that your guinea pig’s body needs, except calcium and sodium. This fruit is an excellent way of giving your pet a wide range of nutrients in just a single serving.

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Health Risks: Are Bananas Bad for Guinea Pigs?

Bananas are generally healthy, nutritious food to supplement your guinea pig’s main diet of hay with. But there are a couple of things to keep in mind before adding them to your pet’s meal plan.

High In Sugar

It is the single biggest problem with bananas and most other fruits. 100 grams of banana contains a whopping 89 calories, most of which come from carbs and sugar. True, bananas also contain a fair amount of fiber to help balance the sugar out.

But at the end of the day, guinea pigs simply weren’t designed to handle large amounts of sugar. Feeding your guinea pig too much sugar too frequently can ruin his teeth. 

A diet high in sugar can also lead to obesity, diabetes, and related heart conditions. Our domesticated pets don’t get nearly as much exercise as their wild cousins, so it’s important to keep their caloric and sugar intake under control.

Be Careful With Banana Skins

In and of themselves, banana skins are not bad for your guinea pig. They are a good source of potassium, and they’re less sugary than the fruit itself while providing more fiber. Many guinea pigs love them.

But before giving your pet any, be sure to wash them thoroughly under clean, running water. This is because banana skins can easily have traces of pesticides, herbicides, and other contamination on them, which you really don’t want your pet to ingest.

Another way around this problem is to buy organic bananas. That way, you can be 100% sure that your pet is eating clean, healthy fruit with no harmful substances.

Feeding Guidelines: Bananas for Guinea Pigs

Ripe bananas are very soft, so your guinea pig would probably have no trouble dealing with a whole, unpeeled banana by himself. But that would be way too much sugar for his small body, so of course, you cannot do that.

A Teaspoon Is A Good Amount

Guinea pigs are tiny little animals, so you need to be careful not to judge what they can eat by human standards. Whether you choose to feed your pet banana skins as well, or only the fruit, one little slice is enough.

10-15 grams is plenty for your pet.

If you’re feeding the skins too, be sure to wash them thoroughly first. Either way, 10-15 grams, roughly one flat teaspoon, is plenty for your pet.

Feed Only Occasionally

Bananas are nutritious for your guinea pig, but because they’re so high in sugar, you should only feed them once in a while. Once a week should be safe enough for an otherwise healthy animal.

If your pet is overweight or suffers from a medical condition such as diabetes, you may be best off avoiding fruit altogether. Your vet will be able to advise on the best possible diet for your pet in cases like these.

Related: Best Cages For Guinea Pigs

Nutrition Facts

Bananas are more than just a tasty fruit. They’re also one of the more nutritious ones, providing a wide range of vitamins and minerals essential to your guinea pig’s overall health and wellbeing.

This fruit is especially rich in vitamin B6 and vitamin C, but it also contains many of the other vitamins in the B complex and a small amount of vitamin A. When it comes to essential minerals, bananas contain all except calcium and sodium.

Coupled with the low fat and high fiber content, bananas are a great way to add many key nutrients to your guinea pig’s diet. The only thing about them that is not so good for your pet is the high sugar content.

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Bottom line: Can Guinea Pigs Have Bananas?

Your guinea pig’s main diet needs to be made up of good quality hay, but hay cannot provide everything your pet needs. There are essential vitamins and minerals that your pet needs to get from leafy green veggies and fruit.

To put it in a nutshell, bananas are a healthy, tasty way to add some vitamin B6, vitamin C, and a whole lot of minerals to your guinea pig’s diet in a single serving. Banana skins are okay, too, provided you wash them thoroughly first.

But while bananas are rich in fiber, they also contain a whole lot of sugar. Too much sugar puts your guinea pig at risk of developing several health conditions, so ultimately, bananas should be fed only as an occasional treat.


Can guinea pigs eat banana peels?

Yes, guinea pigs can eat banana peels. The peel is not toxic to guinea pigs, and actually, it’s healthier than the flesh as it contains less sugar and more fiber. Organic bananas are recommended because the peel contains pesticides. Also, follow our feeding guidelines as banana peels contain sugar, which may cause obesity and diabetes in guinea pigs.

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Vet’s Comment

A small amount of banana makes a tasty and nutritious treat for your guinea pig, and your guinea pig can be fed both the banana itself and the peel. As with anything else, it is important to feed all treats in moderation.

The bulk of your pet’s diet should be fresh hay, and this should be available all the time. Fresh fruits and veggies should also make up a large portion of your guinea pig’s diet, as many fruits and vegetables contain vitamin C, which is vital for guinea pigs.

However, because vitamin C is so crucial, it’s essential also to give your guinea pig a vitamin C supplement daily; chewable tablets work the best.

Dr. Leonie McKinlay, DVM

NOTE: Advice provided within this article by is not a substitute for veterinary advice. Please discuss your pet’s specific dietary needs (based on his breed, weight, age, and health status) with a veterinarian.

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