Can Guinea Pigs Eat Watermelon? 5 Benefits | Full Guide

can guinea pigs eat watermelon

Watermelon is a tasty red fruit that is enjoyed worldwide. It is a famous thirst-quenching fruit, especially in the hot summer months. It also boasts numerous great nutrients and health advantages. But can guinea pigs eat watermelon?

Guinea pigs can eat the fruit and the rind. While watermelon is safe to give in small amounts, there are some things you should learn before making it a daily addition to your guinea pig’s diet. Let’s dive in to understand the benefits and risks of providing watermelon to guinea pigs.

Can Guinea Pigs Eat Watermelon?

Yes, guinea pigs can eat watermelon, but in moderation.

While a guinea pig’s diet should primarily consist of grass, hay, and fresh vegetables such as cabbage, spinach, zucchini, and pellets, the occasional fruity treat will not cause any harm. It includes Watermelon.

You should only give your guinea pig a small slice of Watermelon once per week. While grass and hay are imperative to a guinea pig’s digestive tract and teeth, too much Watermelon can result in an upset tummy. Moreover, watermelon has a high amount of sugar, which can lead to weight gain and tooth decay in a guinea pig.

Guinea pigs can consume both the flesh and the rind of a watermelon. The hard skin of watermelon is way better for a guinea pig than the fleshy part of it, which is mostly sugar and water. Watermelon rind contains enzymes that help digestion and has zinc, potassium, vitamin A, and iodine. Many pet owners will say that guinea pigs love to consume watermelon rind. Moreover, many guinea pig owners have noticed that some guinea pigs like rind way more than the flesh of a watermelon.

Can Guinea Pigs Eat Watermelon

How Often Can Guinea Pigs Eat Watermelons?

Stick to a small one-inch cube of watermelon per serving or a couple of inches of the rind. Guinea pigs can consume small amounts of watermelon as a treat once every week. However, guinea pigs shouldn’t eat watermelon daily because it has high sugar content.

Avoid giving your guinea pig watermelon around the same time as other sugary fruit such as apples, grapes, bananas, and vegetables, so your guinea pig is not overeating sugar at once.

5 Benefits of Feeding Watermelon to Guinea Pigs

1: Scurvy Prevention

The guinea pigs always require vitamin C to survive and fight off the deadly disease called scurvy. These are the scurvy signs: fatigue, diarrhea, rough coat, no appetite, and discharge. They are prone to scurvy disease only when a lack of vitamin C is in their diets. They lack vitamin C because they can not make it, and they also can not store it. So, feed them vitamin C foods whenever you can.

2: Antioxidants: Improves Immunity

The watermelon rind contains vitamin A and lycopene, both powerful antioxidants that can enhance overall health and boost immunity. When guinea pigs receive antioxidants, they can remove the radical harm that causes them most health issues.

3: Prevention from Digestion Problems

Watermelon contains zinc and betaine, and they are essential for gut health, among other things. For example, sometimes your guinea pig can have cramps, indigestion, or diarrhea. Zinc helps to treat diarrhea, and betaine can enhance the digestion process overall.

4: Vitamin B6: Better Sleep

The B6 vitamin enables relaxation, better sleep, and a happier mood. This vitamin can enhance sleep quality, boost serotonin production, and reduce stress.

5: Iron: Health of the Blood

It is a mineral that is vital for the health of the blood and overall health as well. The organism is less prone to health issues when the blood is strong and healthy. Iron is there in every cell, mainly in the red blood cells. It removes weakness, fatigue, and deters anemia, and boosts overall immunity.

3 Risk of Feeding Watermelon to Guinea Pigs

1: Urinary Tract Complications

Several fresh produce foods have calcium, and the rind contains calcium traces too. In abundance, this mineral can harm the cavies’ urinary tracts. But the watermelon rind does not have much of it. Therefore, watermelon rinds should be provided to guinea pigs a few times every week. If given in abundance, calcium can result in pain during urination, blood in urine, kidney stones, and urinary infections.

2: Possible Ingestion of Pesticides or Insecticides

If the outer layer is not washed well, there is a danger that the guinea pig can take some chemicals. Nowadays, every fruit and vegetable is sprayed with pesticides and insecticides, so you must wash the skin of the Watermelon properly.

3: Lead to Indigestion

If you leave more of the fleshy part of Watermelon on the white rind, and the guinea pig could take too much sugar, it will cause indigestion. The fleshy part of the Watermelon is very sugary and sweet, and the cavies can not digest excess sugars adequately.

After eating sweet foods, guinea pigs will get flatulence, cramps, pains, gasses, and loose stool. Remember to leave just a little bit of the fleshy part and slice the rind to make it simpler for guinea pigs to chew.

How to Feed Watermelon to Guinea Pigs?

Choose the Right Watermelon

The initial step is to select the right Watermelon. It would help avoid unripe watermelons, which are unsuitable for guinea pigs. A ripe watermelon contains ninety percent water in contrast to its counterparts.

Wash it Properly

The second step will be to properly wash the outer rind to ensure no chemicals are in it, which helps remove any traces of pesticides. It is also best to let the Watermelon warm up to room temperature before giving it to your guinea pig so that it is easier on your guinea pig’s digestive system. It is good if you choose an organic one.

Remove the Seeds

Remove all seeds before feeding a piece to the guinea pig. While seeds are generally found in the flesh of the Watermelon, some seeds will also find their way into the flesh.

Cut in Adequate Sizes

The fourth step is to cut the Watermelon properly, which must be provided at the suggested amount only. Cut a cube approximately one-inch square, or chop off a couple of inches.

Serve the White Portion

It would help if you gave the white portion of the rind and the red flesh of the watermelon to the guinea pigs. Clear out uneaten parts within a few hours to avoid unnecessary bacteria buildup.

Serve Gradually

If the guinea pig has never tried Watermelon, begin with a small amount at first. Then, give some bites or a thin slice of Watermelon to give the guinea pig’s body time to adapt to any new food. Sometimes these animals take time to adapt to a new type of food, so if they do not eat it right away, try it for more days. It also frequently helps to give the new vegetable separately from their regular vegetables.

Observe the guinea pig for many hours after they try any new food. As long as there is no diarrhea, you can slowly increase the quantity of Watermelon next time. Keep in mind to give Watermelon as an occasional treat.


So can guinea pigs eat Watermelon? Yes, guinea pigs can consume watermelon and watermelon rind. But only fresh, seedless watermelons are given in moderation. This delicious fruit can be a healthy and tasty snack that aids in warding off scurvy disease, boosts immunity, and helps in bone and tooth development.

Watermelons are an excellent source of vitamins and minerals, keeping the body hydrated in the summer heat. Guinea pigs can also get Vitamin A and C, Calcium, Potassium, and other minerals from Watermelon. These minerals are essential for the healthy growth of guinea pigs. But it should be fed in moderation. If guinea pigs are given excess Watermelon, they might suffer from diabetes and diarrhea, which is harmful.


Do guinea pigs like to eat Watermelon?

Yes, guinea pigs like to eat Watermelon. Watermelon has a sweet and juicy flavor that guinea pigs love. Guinea pigs that do not like the sweetness may prefer the rind. 

How much Watermelon can I give to my guinea pig?

It will help if you give your guinea pig watermelon in moderation. It should be given once a week. The standard serving size shall be a slice of small size. But, this shall depend upon the age of the guinea pigs.

Can guinea pigs eat watermelon leaves?

You should avoid giving watermelon leaves to your guinea pig. There are several other great greens and plants you can feed your pig, so it is best not to take the risk on the leaves of Watermelon.

Can guinea pigs eat watermelon rinds?

Guinea pigs can consume the green watermelon rind and the white part. These have many minerals and vitamins and much less sugar than fruit.

Can guinea pigs have watermelon seeds?

Watermelon seeds are not harmful to guinea pigs but are also unsafe to consume, and the hard seeds are much too big and lead to a choking risk to the pigs. Therefore, removing these before giving your guinea pig a piece of Watermelon is essential.

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