Can Guinea pigs eat tomatoes? Find out if they can

by The Pets Pampering Team
Can Guinea pigs eat tomatoes

Can Guinea pigs eat tomatoes? A common question for pet owners is whether their pet guinea pig can eat tomatoes or not. Like many things, it depends on the type of tomato and how ripe it is. Guinea pigs require a diet that contains high-quality pellet food and fresh vegetables. Tomatoes are an excellent choice of vegetable to feed your pet Guinea pig, if you do so in moderation.

Can Guinea pigs eat tomatoes?

The simple answer is yes, guinea pigs can eat tomatoes. Tomatoes are not toxic to guinea pigs and they have many health benefits for them. Guinea pigs can have tomatoes in small quantities. They love the sweet taste of a tomato and on top of that they are very healthy for them too. Feeding Guinea pigs should be a mix of different vegetables, fruits and hay and tomatoes can also be one of them.

Tomatoes are part of the nightshade family, which means they are related to potatoes. This is important to note because some vegetables in the nightshade family can be toxic to guinea pigs (for example, potatoes and eggplant), so you’ll have to use extra care when feeding your guinea pig tomatoes.

Tomatoes are not toxic for guinea pigs, but they should be in moderation because too many tomatoes can cause diarrhoea.

The benefit of feeding your guinea pig tomatoes is that they contain lycopene, which is an antioxidant that can help lower the risk of heart disease. Tomatoes also contain Vitamin C, which helps boost your pet’s immune system and fight off diseases like scurvy. Guinea pigs naturally produce their own vitamin C, but they still need extra help from food and supplements.

Why Tomatoes?

The tomato is technically a fruit because it grows from flowers. However, it acts as a vegetable. It is full of vitamins A and C and contains potassium, manganese, phosphorus and calcium. Tomatoes contain lycopene which is an antioxidant that helps fight cancer by neutralising free radicals.

How many tomatoes should you give your guinea pig?

You shouldn’t give more than one-quarter of a tomato per day to an adult guinea pig. Baby guinea pigs should get even less — maybe just one slice or a couple cherry tomatoes per week.

Guinea pigs can eat tomatoes because they aren’t toxic, but they are acidic and may cause gastrointestinal upset if eaten in large amounts. Tomatoes are also very high in sugar, so it’s best to use them as an occasional treat.

Guinea pigs are herbivores, so their diet consists of fruits and vegetables, as well as hay and pellets. If you're going to be feeding your guinea pig tomatoes, it's important to know which parts of the tomato they can eat and which ones to avoid.

A guinea pig can eat the following parts of a tomato:

The fruit of the tomato plant. The fruit is what most people commonly think of as a tomato, and it’s perfectly safe for your guinea pig to eat. The fruits are high in natural sugars, so give in large quantities. The tomato is also very acidic. If you notice any adverse reactions in your guinea pig after feeding tomatoes, discontinue feeding them immediately.

The leaves and stems of the tomato plant. Tomatoes are fruits, but they’re often eaten like vegetables (which makes them an inclusion as a vegetable on nutritional charts). The leaves and stems of the tomato plant are also edible, but give them sparingly because they’re mildly toxic to guinea pigs when consumed in large amounts.

Guinea pigs cannot eat:

The stem – this is because it is poisonous to them.

The seeds – although a little bit won’t harm them, but too many seeds could cause diarrhoea.

There is a debate on whether the tomato leaves are safe for guinea pigs. The concern is that the leaves are poisonous to humans and other animals, but there isn’t enough research on the effect of tomato leaves on guinea pigs.

How many tomatoes should I give to my guinea pig?

The first rule is to feed your guinea pig a little bit at a time. Tomatoes are very low in calcium, so they aren’t a good regular source of nutrition. A whole tomato or even half would be too much for one sitting. You should only offer your guinea pig a few slices at a time. This can be either raw or cooked.

They also shouldn’t get more than 1 slice per day to avoid upsetting their digestive system. Eating too much tomato will cause your guinea pig to have loose stools. You might also see them straining to pass stool as well as in pain and discomfort around their stomach area.

Depending on how much fruit you feed your guinea pig, it could make up to 10% of their daily diet. But if you’re feeding them more than that, it could mean they’re not getting the right balance of nutrients.

Are there any other vegetables that they can eat like tomatoes?

While guinea pigs can eat tomatoes, there are many other vegetables that they can eat. Tomatoes are a good source of vitamins and minerals for guinea pigs; however, they should be in small amounts because they contain a lot of sugar.

Guinea pigs need a variety of fruits and vegetables in their diets. Their diet should include a wide range of fruits and vegetables as well as commercially prepared pellets or hay. Guinea pigs are herbivores so they eat only plants; they do not eat meat or fish.

There are many vegetables that guinea pigs can eat. Some of these are:

  • Carrots
  • Celery 
  • Bananas 
  • Melons 
  • Apples 
  • Grapes

If you want to give your guinea pig something different then try some broccoli or cabbage.

How to prepare tomatoes for your guinea pig?

Tomatoes are good for guinea pigs but serve them in moderation because they are high in sugar.

The best way to serve tomatoes is to cut them up into small pieces and then put them in a bowl with hay so that the guinea pig has something else to do while it is eating the tomato pieces.

If you want your guinea pig to eat the skin of the tomato, make sure that you completely remove it from the fruit before giving it to your pet.

The leaves of the tomato plant can be toxic for guinea pigs so always keep these away from them!

The side effects of tomatoes for guinea pigs.

Guinea pigs are herbivores, meaning they eat only plants. Many people think that since guinea pigs like fruits and vegetables so much that they can eat anything, but that is not true. There are many fruits and vegetables that could kill your guinea pig if fed in high quantities or too often.

One of the foods that guinea pigs should not give in plenty is tomatoes. Tomatoes contain a substance called solanine, which can cause an upset stomach in guinea pigs. Solanine is also poisonous to humans if consumed in large amounts and can cause diarrhoea, vomiting and nausea.

The symptoms of solanine poisoning include:


Hair loss




The good news is that guinea pigs can eat all kinds of tomatoes. This includes everything from cherry tomatoes, grape tomatoes, and heirloom tomatoes to beefsteak tomatoes and plum tomatoes. Also, ripe and unripe tomatoes are fine for guinea pigs to eat.

Can guinea pigs eat cherry tomatoes?

Yes, they can! Cherry tomatoes are a great source of vitamins for guinea pigs. You can feed them fresh or dried cherry tomatoes. Dried tomatoes won’t have the same nutritional benefits, but they make a great treat for your furry friend!

Can guinea pigs eat tomato sauce?

No, tomato sauce isn’t safe for guinea pigs to eat because it contains too much salt and sugar. Plus, it’s made with other ingredients that aren’t good for little piggies either! So, if you want your cavy to live long happy lives then keep them away from this food at all costs!

Can guinea pigs eat sun-dried tomatoes?

No.  Sun-dried tomatoes are not safe for guinea pigs because they contain a high level of salt and oil. The salt content is much higher than it is in fresh tomatoes, which are already weakly poisonous to guinea pigs. If you want to feed your pet sun-dried tomatoes, you can do so as an occasional treat, but only after rinsing the tomatoes thoroughly to remove most of their salt content.

The health benefits of tomatoes for guinea pigs

Tomatoes are high in vitamin C and contain a lot of antioxidants. These antioxidants help to keep your guinea pig’s immune system strong, which is very beneficial, because cavies can suffer from scurvy (a vitamin C deficiency).

Two antioxidant vitamins that are especially abundant in tomato plants are vitamins A and E. Vitamin A keeps your cavy’s skin healthy, whereas vitamin E helps to prevent heart disease. Tomatoes also contain beta-carotene, which is also good for your cavy’s skin and eyes.

Can Guinea pigs eat tomatoes

The health benefits of tomatoes for guinea pigs include:

Antioxidants: Tomatoes are rich in vitamin C, which is essential to produce collagen in the skin. Collagen keeps the skin firm and helps in wound healing. Collagen also keeps the blood vessels strong, reduces inflammation and has anti-aging effects on the skin.

Anti-inflammatory: Tomatoes are rich in antioxidants that have anti-inflammatory properties. They reduce swelling and pain caused by inflammation. The high levels of vitamin C in tomatoes help prevent infections and boost immunity that aids in fighting diseases.

Antibacterial: Tomatoes contain lycopene, an antioxidant that protects your guinea pig from harmful bacteria such as Staphylococcus aureus and Escherichia coli. Lycopene also prevents infection by parasites like Giardia lamblia and Cryptosporidium

The tomato contains lots of water and fibre, both of which are good for your pet’s digestion. 


So when you are speaking of can guinea pigs eat tomatoes, you are not going to need to worry if they can eat tomato plants. The only thing that you may find tricky is if they can eat tomatoes as part of their diet or some other form. But it is safe for them to eat the plants as long as everything else is checked.


Do tomatoes have water?

While most vegetables contain some water, tomatoes have an unusually high-water content of 94%. As a result, eating too many tomatoes can cause loose stools or diarrhoea in guinea pigs. In fact, any fruit or vegetable with a high-water content can result in loose stools such as apples, pears and peaches. 

We therefore recommend that you don’t feed too much of these fruits and vegetables to your pets. If you do decide to give them these foods occasionally, make sure it’s only in small quantities and monitor your pet carefully. This way, you will know if your guinea pig has problems digesting these food types.

What should you look out for when feeding tomatoes to your Guinea pig?

Before giving your pet a fresh tomato, make sure to wash it thoroughly to remove any dirt and pesticides. Seeds can be difficult for a small mammal like a guinea pig to digest, so make sure you remove them before feeding them the fruit. You should also slice the fruit into smaller chunks to make it easier for your pet to eat.

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