Can Guinea Pigs Eat Grapes?
Vet-Approved Feeding Guide

can guinea pigs eat grapes

March 15, 2022

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You are likely very confused about what diet is best suited for your pet if you’re a new pet-parent. Read on to discover more about whether your guinea pig can gorge on grapes or not and what the related benefits or risks are.

Can Guinea Pigs Eat Grapes?

Yes, guinea pigs can eat grapes, although seeds are a choking hazard and should be avoided. Grapes can be a great treat full of Vitamin C, but you should follow our vet-checked feeding recommendations to prevent health problems like obesity and diabetes that may result from feeding high-sugar grapes to your guinea pig.

The answer to the question ”can a guinea pig eat grapes?”, is definitely yes. But there are certain factors you need to consider before you start feeding your cavy this fruit.

Hay and veggies comprise the bulk of your pet’s diet, but to meet the dietary requirements, make sure you also feed high-quality guinea pig pellets.

Health Benefits: Are Grapes Good for Guinea Pigs?

As a fruit, grapes have some excellent health benefits. For instance, grapes have vitamins and minerals including Vitamins C, B6, B3, K, phosphorus,and potassium.

Are there any health benefits of eating grapes for guinea pigs?

As a rule of thumb, here’s how the ideal guinea pig diet should look:

  • 80% hay
  • 10% pellet diet
  • 10% leafy greens
  • Fruits once or twice a week as treats

It means that a cavy’s primary source of protein and vitamins comes from food other than fruit.


Keeping that in mind, let’s move on to the health benefits that an occasional serving of grapes can offer your guinea pig.

1. Vitamin C

Guinea pigs cannot make their Vitamin C, and they need around 25-40mg/kg of vitamin C per day to prevent health complications like scurvy.

Scurvy can interfere with your pet’s ability to make collagen, which is necessary for healthy tissue and bone formation. Scurvy can also cause weakness, skin and joint problems.

To avoid this situation, you can easily supplement your pet’s diet with grapes once or twice a week. However, remember that grapes cannot replace pellets or vegetables like romaine lettuce and carrots as a source of vitamin C.

2. Vitamin B6

Grapes contain vitamin B6, providing your pet with a good source of energy for all of their favorite activities like foraging, burrowing, tunneling, etc.

3. Fiber

Guinea Pigs need a lot of fiber and water in their diet to prevent constipation. Grape skins are an excellent source of fiber that will undoubtedly benefit your pig

Now that we’ve gone over the potential benefits of grapes, we need to analyze any potential health risks that your pet can face by eating grapes.

Also Read: Best Guinea Pig Cage for Two

Health Risks: Are Grapes Bad for Guinea Pigs?

Here are some of the problems that your pet can develop by eating grapes:

1. Excess Sugar Can Cause Various Health Issues

One of the most significant health risks attached to eating grapes, for guinea pigs, is the high sugar content. Remember that we said a single grape contains about 0.39 grams of sugar? That is more than the ideal amount for a guinea pig.

Excess sugar lead to problems like diarrhea, diabetes, and obesity.

Guinea pigs have a delicate digestive system, and excess sugar can directly affect the growth of good bacteria while promoting the growth of harmful bacteria, making it a double whammy. It can lead to problems like diarrhea, which will, of course, affect the overall health of the cavy.

Apart from this, excess sugar can also cause health conditions like diabetes. Yes, a guinea pig can develop diabetes. Even though diabetes is not very common in cavies, it is still something you want to avoid. One of the signs a guinea pig suffering from diabetes may exhibit is excess drinking.

Lastly, too much sugar can also lead to obesity. Like humans, guinea pigs can gain weight too quickly if their diet contains a lot of sugar. It does not mean that you should never feed your cavy any grapes. But it is better to exercise caution and limit the amount to a grape or two, once or twice a week.

2. Food Poisoning

Another potential risk involved in eating fruits like grapes is that it may rarely lead to food poisoning. All our produce is usually sprayed with all types of chemicals, like pesticides. If these chemicals find their way into your pet’s tummy, they can cause food poisoning.

This is why you should thoroughly wash any fruit or vegetable, including grapes, before giving it to a guinea pig.

3. Grape Seeds Can Cause Problems

Finally, when you plan on feeding your guinea pig grapes, make sure to buy seedless grapes. Grape seeds may seem harmless to humans, but ingesting it can cause a guinea pig harm.

Apart from grape seeds being a choking hazard, they can also hurt a cavy’s delicate tummy. To avoid all these complications, get a variety of seedless grapes that are readily available where you live.

Feeding Guidelines

80% of a guinea pig’s diet should consist of protein-rich hay, like timothy hay. The remaining 20% should be divided equally between high-quality pellets and leafy green vegetables, like kale.

As we’ve already discussed, grapes with their high sugar content should only be included in a guinea pig’s diet as a treat. This brings us to the issue of serving size.

You can serve your pet only a grape or two, no more than twice a week.

That may seem like a small amount, but it’s best not to exceed this limit to avoid any health issues.

This is how to prepare grapes for your cavy:

1. Make sure to buy seedless grapes or remove the seeds. Seeds are a choking hazard, and they can also hurt a guinea pig’s tummy.

2. Thoroughly wash the grapes before giving them to your guinea pig. Grapes are usually sprayed with pesticides, and washing the fruit before feeding it to your guinea pig will help you avoid any chemicals finding their way into your pet’s tummy.

3. Remember to cut the grapes before serving them. You can’t serve a guinea pig whole grape because they can easily choke on them. It’s best, therefore, to cut the grape in half and then feed it to your pet.

4. Lastly, take a step back, and watch your cavy devour the fruit. The fun part about watching guineas eat fruit is that they have a sweet tooth and will likely gobble up the grapes you serve them in no time.

This way, you and your cavy can both enjoy treat-time.

Also Read: Safe & Cozy – Best Beds For Guinea Pigs According To A Vet

Nutrition Facts

According to Guinea Lynx and the official USDA website, a single grape weighs approximately 2.4 grams and contains the following approximate nutritional values:

  • Protein – 0.015 grams
  • Fiber – 0.022 grams
  • Calcium – 0.336 milligrams
  • Phosphorus – 0.24 milligrams
  • Magnesium 0.12 milligrams
  • Vitamin C – 0.096 milligrams
  • Vitamin A – 0.12 micrograms


The building blocks of the body, protein can be found in bones, muscles, blood, skin, etc. The body also uses protein to repair tissue, making protein an essential nutrient for all living things.


One of the most vital minerals for humans and guinea pigs is calcium. Not only does calcium help in building and maintaining healthy bones, but it’s also required for the proper function of the heart and nerves.


Another essential nutrient for all living things is phosphorus. After calcium, phosphorus is the second most abundant mineral in an animal’s body. It plays a significant role in the development of bones and teeth, and in making and conserving the body’s energy.


Magnesium deficiency can lead to several problems in guinea pigs, such as slow growth, overgrown molars, decaying of incisors, and stiffness in hind legs. This is why commercial guinea pig pellets contain magnesium supplements.

Vitamin A

Vitamin A has a lot of benefits, such as promoting healthy vision and the immune system. It can also be found in vegetables like carrots and broccoli, which are highly approved of in the diet of guinea pigs.

Bottom line: Can Guinea Pigs Have Grapes?

There we have it; your guinea pig can certainly eat grapes.

Unlike other animals such as dogs, cavies can eat grapes without suffering ill effects. Too many grapes in your guinea pig’s diet, however, will eventually cause harmful effects, such as diarrhea, obesity, or even diabetes.

To give your pet the best of both worlds, only feed them the occasional grape treat as suggested in our article to keep your cavy healthy and happy, just like you want it to be.

FAQ – Guinea Pigs And Grapes

Can guinea pigs eat grapes with seeds?

No, guinea pigs should not eat grapes with seeds because grape seeds may pose a choking hazard or cause an intestinal blockage if swallowed. You should buy seedless grapes for your guinea pig or cut the grapes in half and remove them before feeding.

Vet’s Comment

Grapes are delicious, and your cavy will certainly agree. Grapes, however, are high in sugar for guinea pigs, so they should only be given occasionally as a treat.

The sugar levels in grapes can upset your cavy’s tummy, and as guinea pigs cannot vomit, this can cause serious illness in your pet.

Always use seedless grapes for your fur-friend as they can pose a choking hazard and even get stuck in your pig’s intestines, needing surgery to remove them.

– Dr. Edele Grey, 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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