Can Guinea Pigs Eat Grapefruit? Too Much Can Be Bad

Can Guinea Pigs Eat Grapefruit

Grapefruit is subtropical citrus that’s known for its relatively large sour to semisweet flavor. This fruit can be eaten raw or add to salads for a delicious meal. Humans are able to eat grapefruit safely, but what if you have a pet guinea pig and want them to eat some as well.

Can guinea pigs eat grapefruit? Yes, guinea pigs can eat grapefruit, including the rind. This citrus fruit is rich in vitamin C, which is significant for guinea pigs as they can’t produce on their own. However, due to the fruit also being rich in sugar and very acidity, it should be fed to them in moderation to prevent any health issues. 

Is It Safe For Guinea Pigs To Eat Grapefruit?

Guinea Pig Eating

Grapefruit is safe for guinea pigs to eat, only if it’s fed to them in moderation. While the fruit doesn’t contain any toxins, it does have a high amount of sugar and it’s quite acidic.

Too much sugar being fed to them will cause them health issues such as high blood pressure and could lead to obesity. Obesity is common among guinea pigs that are kept in captivity due to their being housed in cages.

As for the acids in the grapefruit, too much of it could lead to mouth burning and urinary tract infection.

Health Benefits of Grapefruit for Guinea Pigs

Grapefruit is a good source of calcium, fiber, vitamin A, vitamin E, and vitamin C. All of these nutrients are what the guinea pigs need to stay healthy and happy.

8 ounces of grapefruit has the following:

  • Sodium 4.8mg
  • Carbohydrate 19g
  • Dietary Fiber 0.7g
  • Sugars 19g
  • Protein 1.2g
  • Vitamin A 38mcg
  • Vitamin C 53mg
  • Calcium 350mg
  • Iron 0.1mg
  • Vitamin E .5mg
  • Thiamin 0.09mg
  • Riboflavin 0.07mg
  • Niacin 0.5mg
  • Vitamin B 60.11mg
  • Folate 29mcg
  • Phosphorus 38mg
  • Magnesium 22mg
  • Zinc .1mg
  • Potassium 317mg

The above data is from USDA FoodData Central

Below are some of the health benefits of feeding grapefruits to your guinea pigs:

Prevent Scurvy

Guinea pigs that are in captivity are prone to scurvy disease. Scurvy is a disease that’s caused by a deficiency of vitamin C. Guinea pigs are unable to synthesize or store vitamin C in their body. This means they need a supply of vitamin C each day.

Without vitamin C, guinea pigs can suffer from painful joints, weight loss, dental issues, bruising or hemorrhage, diarrhea, and a rough coat.

Helps in Digestion

Grapefruit is a good source of fiber. Fiber is needed in their diet to help with digestion.

With a good amount of fiber each day, it helps reduce constipation in guinea pigs. Also, it will help promote regular bowel movement, which will make food move through the digestive tract smoothly.

Rich in Antioxidants

Grapefruit is rich in antioxidants. Antioxidants are important for guinea pigs as it helps reduce the risk of having diseases.

Disease in guinea pigs is usually caused by free radicals in the body. Free radicals are molecules that destroy the cells of the body. These molecules are created by food that the guinea pigs eat, cigarette smoke, and radiation.

By having food rich in antioxidants like those of grapefruit, guinea pigs will have a less chance of getting sick and having diseases.

Can Baby Guinea Pigs Eat Grapefruit?

Yes, baby guinea pigs can eat grapefruit. It’s a good idea to wait until at least they are 3 weeks old before feeding them grapefruit. This is when they stop depending on their mother’s milk and start eating solid food.

However, baby guinea pigs can start eating when they are just 3 days old. Their mother will usually teach them how to eat it. You can try to place small pieces of grapefruit next to them and see if their mother will teach them to it. If the mother doesn’t feed them, don’t try to force the baby guinea pigs to eat it.

Once they are 3 weeks old, you can start by giving them a small piece of grapefruit. This will allow you to see if they have any negative reactions to the fruit. If they do, they’ll end up vomiting or having diarrhea. If that’s the case, avoid feeding them any more grapefruit.

On the other hand, if the baby guinea pigs enjoy eating grapefruit, you can give them a small piece of it once a week. Feed them this much until they are an adult.

Can Guinea Pigs Eat Grapefruit Rind?

Yes, guinea pigs can eat grapefruit rind. It doesn’t contain any toxins that could harm them. However, the rind is a bit tough and it may make it difficult for them to eat it.

If you want to feed them the rind, cut them into small pieces first. Then feed them to the guinea pigs. Make sure to just give them a small piece of the rind once or twice per week.

How To Feed Grapefruit To Guinea Pigs

Feeding grapefruit to the guinea pigs is simple and quick. Below are the steps to prepare and feed the grapefruit to them:

  1. With a knife, cut the grapefruit in halves.
  2. Using your fingers, peel away the flesh from the fruit.
  3. Peel the skin off the flesh and remove the seeds.
  4. Give a small piece of the grapefruit to your guinea pigs.

Besides just feeding them grapefruit, you can also mix the fruit with other fruits and vegetables. This will give them a boost in nutrition. If you do, be sure to add just a small amount of each food into the mix.

How Many Grapefruit To Feed Guinea Pigs

Grapefruit should be fed to the guinea pigs in moderation. This is due to the sugar content and acid that it has. Too much grapefruit will cause guinea pigs to have health problems.

As a general rule, grapefruit should make up only 10% of the guinea pig’s overall diet. The rest should come from hay and leafy greens, which should make up the bulk of their diet.

To prevent health issues for your guinea pigs, feed them a small piece of grapefruit, once or twice per week.

Other Fruits That Guinea Pigs Can Eat


Apples are not only delicious but it’s packed with nutrition. This fruit is a good source of fiber, antioxidants, and vitamins. Also, apples have a lot of sugar and high water content. This can cause the guinea pigs to heave health issues. For that reason, feed them apples in moderation.


Bananas contain many important nutrients such as fiber, protein, and vitamin C. Vitamin C is important for guinea pigs as they can’t make this vitamin on their own. However, bananas are also high in sugar and water content. This makes them unhealthy and can cause health issues for the guinea pigs. To avoid health issues, feed the bananas in moderation, a small piece about once or twice per week.


Kiwi makes an excellent treat for guinea pigs. It’s a good source of fiber, protein, and vitamin C. While it’s high in a lot of nutrition that the guinea pigs require, it’s also high in sugar and water. Both of these can cause guinea pigs to have health issues. For that reason, feed kiwi to the cavies in moderation, once or twice per week.


Grapefruit is safe and makes a great snack for your guinea pigs. However, due to their high sugar content and it contains acids, it’s best to feed them in moderation. Too much can lead them to have all sorts of health issues. Give them a small piece of grapefruit, once or twice per week and it should keep them happy.

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