Can Guinea Pigs Eat Tomatoes?

guinea pig eat tomato

Tomatoes are delicious and nutritious treats that guinea pigs love to snack on. 

They’re juicy, and their bright red color shows that they have a ton of vitamins and phytonutrients that will make guinea pigs healthy and robust. And you don’t even have to be worried about the seeds because they are also compatible with animals to eat!

Can Guinea Pigs Eat Tomatoes?

Yes, if there was ever just one vegetable made explicitly for the guinea pig to eat, it would definitely be the tomato. This fruit is exceptionally juicy, which makes it a treat for guinea pigs to enjoy. The tomato is also known to be highly packed with vitamins, minerals, and phytonutrients. It is well known throughout the world of nutritional science that colorful vegetables have a ton of antioxidants.

Beware the Pesticides

One important thing you must know about feeding your guinea pig vegetables, including tomatoes, is that you absolutely have to wash them before you feed it to them. Guinea pigs are incredibly susceptible to poisoning from pesticides. And tomatoes are some of the most pesticide-grown fruits ever. No matter what vegetable it is, you have to wash them before eating them. Even if the container or bag they come in says pre-washed, you also have to clean them yourself.

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guinea pig eats tomato

What Part of the Tomatoes Should They Avoid?

When you are feeding your guinea pig any type of tomato, whether it be cherry or beefsteak, you never want to give them the tomato leaves or tomato stem. Although the fruit itself is exceptionally healthy for guinea pigs, the stem and leaves are not. If the guinea pig ends up eating the leaves and stems, they will experience extreme intestinal distress, like nausea and vomiting. The leaves and stem are very poisonous to the guinea pig, so it is not a good idea to buy them tomatoes on the vine.

A Proper Diet of a Guinea Pig

There are three main elements that create a guinea pig’s proper diet. They are hay, fruits and vegetables, and pellets. The average guinea pig needs its diet to be composed of at least 80% hay. The other 20% can be dedicated to vegetables, fruits, and pellets.

1. Hay

Guinea pigs are features that need a high fiber diet, that is why their diet is 80% hay. Even if you feed them a diet full of fibrous vegetables, they will still need to chew on hay all day long. Most owners keep a brick of hay in their cage so they can eat it whenever they want. When you shop for hay, make sure to purchase a high-quality brand that does not use pesticides when they grow it.

2. Fruits and Vegetables

The serving size for vegetables depends on the vegetables, although most are about a 1 cup serving size. The leafy greens, zucchini, and squash-type of vegetables, the ones that are low sugar and low calorie, have a serving size of one cup. However, yams and corn, or the carb and heavy sugar vegetables, are about 2 to 3 tablespoons per servings.

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When it comes to fruit, you should only serve with two to three tablespoons per serving rule. Guinea pigs do not need a lot of sugar in their diet, although they love sugar, we’ll eat it no matter how much they get. Also, you should not give a guinea pig a serving of fruit more than twice a week, although one time a week is healthier. The Guinea pigs should not consume a lot of sugar in their diet. Always focus on more fiber. Sugary foods should stay a treat.

guinea pig eating vegetables

To us, tomatoes may not seem like a sugary vegetable, but there is fruit sugar inside the tomato, especially in its juice. So you will not want to give them more than two to three slices. 

3. Pellets

Pellets are the last component of a guinea pig’s diet. Pellets contain the fat and amino acids that keep the guinea pig’s body healthy, coat shiny, and provide energy. You need to give pellets to a guinea pig every day, and it’s serving size should be about one or two tablespoons.

Nutrition of a Tomato

1. Vitamin C

Tomatoes are well known for having a lot of vitamin C, which is an essential vitamin to a guinea pig. Guinea pigs cannot form their own vitamin C within their body, so they have to make sure they get it from their diet. If they do not receive enough vitamin C, they can develop scurvy quickly. 

2. Potassium

Potassium is a nutrient that is vital to a guinea pig’s circulatory health. It helps the heart regulate its heartbeat, and it will also help them keep their blood pressure low and well-maintained.

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3. Calcium

When guinea pigs are pups, they need as much calcium as they can get. Calcium is an essential mineral that will help them form strong bones, form bone structure correctly, and fortify their teeth and nails. When they are adults, they do not need as much calcium, but they’d still do need some calcium to maintain the health of their bones and teeth.

Other Fruits That Guinea Pigs Love to Eat

There are quite many fruits in your grocery store aisle that guinea pigs can dine on. Just make sure to keep all fruit servings to 2 to 3 tablespoons.

Here are some fruits you can search for:

  • Strawberry
  • Cantaloupe
  • Kiwi
  • Melon
  • Blueberries
  • Blackberries
  • Pears
  • Peaches
  • Mango
  • Oranges


  • Tomatoes are a great vegetable for guinea pigs to snack on.
  • Tomatoes are chock-full of vitamins, vital nutrients, and antioxidants,
  • Always make sure to wash the tomatoes before you give them to the guinea pig.
  • Guinea pigs are extremely susceptible to pesticide poisoning.
  • As for the serving size, you should only give your guinea pig two or three slices of tomato.
  • Although many people forget, tomatoes are fruit and should only be served to guinea pigs at most twice a week.
  • There’s a lot of vitamin C in a tomato, which will help prevent scurvy from developing in a guinea pig.
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