Can guinea pigs eat watermelon? All You Need to Know!

Can Guinea Pigs eat Watermelon? Yes! It can be a delicious treat as well as a good source of vitamins and minerals for them. However, as with all foods outside their regular feed, it should be done in strict moderation to prevent health issues cropping up for your pocket pet.

can guinea pigs eat watermelon

Can Guinea Pigs Eat Watermelon?

Any good guinea pig parent will know that feeding your pocket pet 1/4 to 1/2 a cup of vegetables, fruits, or greens a day can be very healthy for a holistic diet. Knowing how to regulate the amount and types of fruits and veggies is important.

Can guinea pigs safely eat watermelon as a part of this fresh produce diet? Yes, they can, and it can even benefit their health. Watermelon is a hydrating, vitamin-enriched snack that they can occasionally enjoy a few times a week.

Overfeeding your guinea pig watermelon can cause multiple health concerns like bloating, gas, diarrhea, obesity, and diabetes. Since watermelon, like most other fruit, is high in sugar, it is always responsible for regulating this.

Can Guinea Pigs Eat Watermelon Rinds?

Watermelons are an excellent source of vitamins C and A, as well as dietary fiber. Watermelon rinds contain most of the fiber in this fruit.

Having fibrous components in your guinea pig’s diet can contribute to healthy bowel movements and even prevent any constipation issues that crop up. Too much fiber, however, can create the opposite problem and cause loose stools and diarrhea.

Diarrhea can cause dehydration in your pet, and in small mammals like guinea pigs, this can be dangerous. The rind also contains potassium, which is good for your guinea pig’s kidney health, and iron, which enriches your pet’s blood and prevents anemia and dullness.

So yes, while feeding your watermelon rinds is a good practice (if they enjoy eating it), it should be done in small amounts.

Since the rind is not as delicious as the sweet flesh of the fruit, some guinea pigs may not eat it- and that’s perfectly fine. You can just leave it out entirely!

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Can Guinea Pigs Have Watermelon Juice?

No, watermelon juice should be completely avoided in your guinea pig’s diet– as should most fruit and vegetable juices. Firstly, juicing dilutes the fruit’s nutrient concentration, making it less beneficial than feeding them solid fruit.

The second and more dangerous component is the higher sugar content of watermelon juice. This can lead to various digestive issues, as well as obesity and diabetes.

So whether store brought or made at home, watermelon juice is best avoided for your guinea pig.

Can Guinea Pigs Eat Watermelon Leaves?

Watermelon leaves don’t have a big nutritional impact on your guinea pig, so most guinea pig parents usually don’t consider it. Leaves and greens are good for your guinea pig as they need to keep chewing to file down their teeth that constantly grow.

In that light, young or soft watermelon leaves are okay to feed your guinea pigs in moderation 2-3 times a week. However, tougher leaves or seeded leaves should be avoided.

Additionally, the presence of pesticides on the leaves can be very harmful to your furry companion.

Given the lack of scientific proof about the health effects of watermelon leaves on your guinea pig, it is better to avoid feeding it to your pet totally if you want to be extra careful.

How much watermelon to feed for a guinea pig?

Watermelon is a hydrating, sugary fruit- which, while sounding delicious, is a double-edged sword- but more on that later. Where portion size is concerned, guinea pigs ideally should be given a small slice or a roughly 1-inch cube of watermelon in one serving.

You should never give your guinea pig more than 2 inches of watermelon in one session. The fact that this amount of watermelon should only be given 1-2 times a week and never on consecutive days is also vital to remember.

So if you give your guinea pig watermelon on Sunday, you mustn’t give your fur baby watermelon again on Monday.

Can Guinea Pigs Eat Watermelon Seeds?

While watermelon seeds may not be toxic to your pocket pet, they can be a serious choking hazard. You should never give your guinea pig watermelon seeds.

Since they are hard and slimy, it is tough to chew and easy to get lodged in their narrow throats. This can lead to potentially fatal asphyxiation. So always remember to remove any watermelon seeds while feeding this fruit to your pet.

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Can Baby Guinea Pigs Eat Watermelon?

No, infant or baby guinea pigs cannot eat watermelon for the first few weeks after their birth. Do not feed your guinea pigs anything outside hay (Timothy or alfalfa hay) and water until they reach an adolescent stage.

Once they are ready to consume other greens and vegetables, try introducing watermelon into their diet in very small quantities to see if they like it and if they can digest it properly. If they take to it well, you can add it to their diet in the future in regulated quantities.

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Can guinea pigs eat watermelon skin?

Yes, guinea pigs can eat watermelon skin, and it has not been proven to be toxic for them, but most usually don’t care for it. It is a high source of fiber which helps in having healthy bowel movements.

However, it is tough and can be hard to digest, and can cause digestive issues. Additionally, too much fiber can cause soft feces or diarrhea and cause a drop in their health. Another thing to consider is that the green skin of watermelon is usually covered in pesticides or wax.

Green and Yellow Watermelon Fruit

If your guinea pig likes watermelon rind (the softer, whitish part) and you want to leave the skin on, make sure it is thoroughly washed in warm water to remove any pesticides and wax.

What happens if I feed my guinea pig too much watermelon?

We mentioned earlier that the delicious, sweet, and hydrating nature of watermelon is a double-edged sword. This is because hydrating nature of watermelon can be great during dry summer months and can even be a good snack in case your guinea pig drinks less water.

However, too much watermelon will cause your guinea pig to over-hydrate and create gastrointestinal problems like bloating, diarrhea, and, ironically, dehydration. Most fruits or vegetables with a high water content should be given in moderation to avoid these problems.

The other point of concern with watermelon is its high sugar content with a glycemic index of 80. So if you end up giving your pet guinea pig too much watermelon, there is a risk of them becoming obese and even developing diabetes.

Keeping your pocket pet at peak health is your responsibility as a pet parent, so do make sure your guinea pig’s watermelon intake is limited and regulated.

Can Guinea Pigs Eat Frozen Watermelon?

Frozen watermelon is not recommended for your guinea pigs as the sugar concentration of the watermelon can increase in this state.

As it is a fruit already high in sugar, freezing it is best avoided. However, thawed watermelon is safe to feed to your guinea pigs.

Is watermelon good for guinea pigs?

Yes, adding the occasional watermelon to your guinea pig’s diet has shown to be healthy for them. Vitamins, like most mammals, need Vitamin C to be healthy. Scurvy, which guinea pigs are susceptible to, can be caused by a deficiency in Vitamin C.

Since guinea pigs cannot produce their own Vitamin C, they need to ingest it externally. Watermelon has a moderate amount of Vitamin C, and it is enough to provide the necessary health benefits to your pet when consumed.

Watermelon also contains Vitamin A, which is a great anti-oxidant that improves their immunity and gives them energy. Additionally, the red pigmentation of watermelon comes from lycopene, which is also a good anti-oxidant.

Another health benefit of watermelon comes from the presence of potassium in watermelon, which is great in preventing kidney stones in guinea pigs.

If your pet guinea pig enjoys eating watermelon rind, it is a good source of iron for them, which will keep their blood healthy, give them energy and prevent anemia.

However, always keep in mind that it is a fruit with high sugar content, and too much sugar is detrimental to their health. So while it is a great fruit for your pet to eat, it will only benefit your pet if given in controlled amounts.

Nutritional Facts of Watermelon

The most important nutritional value of watermelon come from:

  • Vitamin C- It helps in the prevention of scurvy and is essential for guinea pigs
  • Vitamin A– It is a great anti-oxidant and improves immunity
  • Vitamin B6– It can improve sleep cycles, increase serotonin and keep your pet happy and relaxed
  • Zinc– It is good for the gut health of your guinea pig and aids in overall digestion
  • Iron– It is good for enriching the red blood cells and preventing anemia, ensuring healthy blood
  • Potassium– It helps prevent kidney stones and urinary issues
  • Lycopene– It is another great anti-oxidant to improve the overall health of your pet
  • Calcium– It contributes to strong bones and teeth in your pet. Too much calcium can cause various urinary issues for your guinea pig. However, watermelon has only small trace amounts of it.

Risks to Consider When Feeding Watermelon Rind to Guinea Pigs

All food outside hay and guinea pig pellets should be given in moderation. Too much watermelon has various associated risks. Here are the risks you should look out for:

  1. Guinea pigs can have gastrointestinal problems like gas, bloating, and diarrhea by eating too much watermelon. This can either be caused by the hydrating nature of watermelon or the very fibrous rind and skin.
  2. The trace amounts of calcium in watermelon are safe, but too much watermelon can cause excess calcium deposits to affect your pet’s urinary health. Bloody urine, urinary tract infections, and even kidney stones are some of the health ramifications of this.
  3. The outside skin of watermelon can contain pesticides that are toxic to your pet, even in small quantities. There is also the widespread practice of adding wax to the skin of these fruits to add extra shine to them. This wax is also armful for your pet. If you feed your guinea pig the outer green skin, make sure you wash it well with warm water to melt away the wax and remove any pesticides.
  4. Watermelon seeds should always be removed before feeding them to your guinea pig. They can pose a major choking threat and could result in asphyxiation if swallowed.
  5. As with more fruits, vegetables, and fresh produce, make sure you do not leave them in your guinea pig’s cage for more than 24 hours. If unconsumed, it will rot and become unsafe for your pet to eat, harming them if ingested.

How often can they eat watermelon?

Adult guinea pigs can eat about 1 to 2 inches of watermelon up to 2 times a week. This is the safest amount you should give your pet. Do not exceed giving your guinea pig watermelon more than three times a week.

Keep in mind that watermelon should never be given two consecutive days in a row. It is best to have a 2-day gap between watermelon feeding sessions. If you give your pet watermelon too often, they may end up facing some of the above-mentioned health risks.

Remember that watermelon or other fruits/vegetables should never be a substitute for their proper diet of hay and guinea pig pellets. Fruits and vegetables should account for no more than 10% of a person’s daily caloric intake.

Do Guinea Pigs Like Watermelon?

Since watermelon is sweet, juicy, and crunchy, most guinea pigs love it! It is not too strong tasting, and guinea pigs enjoy the mild flavor. Some guinea pigs even love the rind, despite it being flavorless.

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However, it depends from pet to pet, so it is your call to see if your pet loves watermelon. If your guinea pig enjoys watermelon, hand-feeding them can be a good social bonding activity for you and your pet.

However, keep in mind that guinea pigs have a healthy appetite and a constant need to chew, so if they love watermelon, do not let them overeat it!


In conclusion, your guinea pig would love the occasional watermelon cube in its diet. It has various health and mood benefits, and a happy pet is a happy pet parent.

However, always make sure it is in controlled, regulated proportions to prevent any drop in your pet’s health once or twice a week. Stick to the above-mentioned feeding guidelines, and you and your pocket fur baby are good to go!


Can Guinea Pigs Eat Yellow Watermelon?

Yes, guinea pigs can eat Yellow Watermelon. It has almost the same nutritional contents as red watermelon, and so the same guidelines are applicable. It does not contain lycopene as red watermelons do. However, it does contain beta-carotene, which is just as good of an anti-oxidant. All the health risks and benefits of red watermelon apply to yellow watermelons where guinea pigs are concerned.

Can Guinea Pigs Eat Watermelon Crust?

Yes, watermelon crust or the yellowish rind part of watermelon can be eaten by guinea pigs. It contains zinc, potassium, iron, and fiber, which is good for your guinea pig’s digestive, urinary, and blood health. However, too much of the crust can lead to diarrhea and other gastrointestinal issues, so it should be given in lesser quantities than the flesh. Due to its flavorless nature, most guinea pigs prefer the flesh over the rind or crust.

What’s Better? The Rind Or The Fruit?

Both have different nutritional values. However, the fleshy fruit is more beneficial than the rind. Since the most important nutrient to be gained from watermelon is Vitamin C, the red flesh of watermelons provides just that. The highly fibrous rind can also be harder to digest and cause disturbances in your pet’s bowel movements. However, since the rind is crunchy and does have some benefits if your pet likes it, it is okay in small quantities. Usually, however, most guinea pigs prefer the more flavourful red flesh of watermelons than the rind.

About the author

I'm Gulshan, a passionate pet enthusiast. Dive into my world where I share tips, stories, and snapshots of my animal adventures. Here, pets are more than just animals; they're heartbeats that enrich our lives. Join our journey!